Home / 1,347,012.30-2,020,518.45-349,740.30

Finding the Fourth Proportional to 1,347,012.30, 2,020,518.45 and 349,740.30

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Solution

The fourth proportional to 1,347,012.30, 2,020,518.45 and 349,740.30 is: 524,610.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,012.30 : 2,020,518.45 = 349,740.30 : x
  2. Step 2: Convert to fraction form
    1,347,012.30/2,020,518.45 = 349,740.30/x
  3. Step 3: Cross multiply
    1,347,012.30x = 2,020,518.45 × 349,740.30
  4. Step 4: Simplify right side
    1,347,012.30x = 706,656,728,858.54
  5. Step 5: Solve for x
    x = 706,656,728,858.54/1,347,012.30
  6. Step 6: Final answer
    x = 524,610.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.