Home / 1,048,405.20-1,572,607.80-338,456.40

Finding the Fourth Proportional to 1,048,405.20, 1,572,607.80 and 338,456.40

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Solution

The fourth proportional to 1,048,405.20, 1,572,607.80 and 338,456.40 is: 507,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,405.20 : 1,572,607.80 = 338,456.40 : x
  2. Step 2: Convert to fraction form
    1,048,405.20/1,572,607.80 = 338,456.40/x
  3. Step 3: Cross multiply
    1,048,405.20x = 1,572,607.80 × 338,456.40
  4. Step 4: Simplify right side
    1,048,405.20x = 532,259,174,599.92
  5. Step 5: Solve for x
    x = 532,259,174,599.92/1,048,405.20
  6. Step 6: Final answer
    x = 507,684.60

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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.