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Finding the Fourth Proportional to 539,447.20, 808,101.60 and 472,962.40

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Solution

The fourth proportional to 539,447.20, 808,101.60 and 472,962.40 is: 708,506.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,447.20 : 808,101.60 = 472,962.40 : x
  2. Step 2: Convert to fraction form
    539,447.20/808,101.60 = 472,962.40/x
  3. Step 3: Cross multiply
    539,447.20x = 808,101.60 × 472,962.40
  4. Step 4: Simplify right side
    539,447.20x = 382,201,672,179.84
  5. Step 5: Solve for x
    x = 382,201,672,179.84/539,447.20
  6. Step 6: Final answer
    x = 708,506.17

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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.