Home / 722,820.30-1,084,230.45-349,572.30

Finding the Fourth Proportional to 722,820.30, 1,084,230.45 and 349,572.30

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Solution

The fourth proportional to 722,820.30, 1,084,230.45 and 349,572.30 is: 524,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,820.30 : 1,084,230.45 = 349,572.30 : x
  2. Step 2: Convert to fraction form
    722,820.30/1,084,230.45 = 349,572.30/x
  3. Step 3: Cross multiply
    722,820.30x = 1,084,230.45 × 349,572.30
  4. Step 4: Simplify right side
    722,820.30x = 379,016,932,136.54
  5. Step 5: Solve for x
    x = 379,016,932,136.54/722,820.30
  6. Step 6: Final answer
    x = 524,358.45

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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.