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Finding the Fourth Proportional to 539,073.68, 807,281.84 and 338,897.60

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Solution

The fourth proportional to 539,073.68, 807,281.84 and 338,897.60 is: 507,511.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,073.68 : 807,281.84 = 338,897.60 : x
  2. Step 2: Convert to fraction form
    539,073.68/807,281.84 = 338,897.60/x
  3. Step 3: Cross multiply
    539,073.68x = 807,281.84 × 338,897.60
  4. Step 4: Simplify right side
    539,073.68x = 273,585,878,099.58
  5. Step 5: Solve for x
    x = 273,585,878,099.58/539,073.68
  6. Step 6: Final answer
    x = 507,511.10

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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.