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Finding the Fourth Proportional to 539,390.20, 807,530.10 and 539,390.20

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Solution

The fourth proportional to 539,390.20, 807,530.10 and 539,390.20 is: 807,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,390.20 : 807,530.10 = 539,390.20 : x
  2. Step 2: Convert to fraction form
    539,390.20/807,530.10 = 539,390.20/x
  3. Step 3: Cross multiply
    539,390.20x = 807,530.10 × 539,390.20
  4. Step 4: Simplify right side
    539,390.20x = 435,573,822,145.02
  5. Step 5: Solve for x
    x = 435,573,822,145.02/539,390.20
  6. Step 6: Final answer
    x = 807,530.10

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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.