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Finding the Fourth Proportional to 558,772.80, 838,159.20 and 508,909.20

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Solution

The fourth proportional to 558,772.80, 838,159.20 and 508,909.20 is: 763,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,772.80 : 838,159.20 = 508,909.20 : x
  2. Step 2: Convert to fraction form
    558,772.80/838,159.20 = 508,909.20/x
  3. Step 3: Cross multiply
    558,772.80x = 838,159.20 × 508,909.20
  4. Step 4: Simplify right side
    558,772.80x = 426,546,927,944.64
  5. Step 5: Solve for x
    x = 426,546,927,944.64/558,772.80
  6. Step 6: Final answer
    x = 763,363.80

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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.