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Finding the Fourth Proportional to 558,892.80, 838,339.20 and 402,595.20

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Solution

The fourth proportional to 558,892.80, 838,339.20 and 402,595.20 is: 603,892.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,892.80 : 838,339.20 = 402,595.20 : x
  2. Step 2: Convert to fraction form
    558,892.80/838,339.20 = 402,595.20/x
  3. Step 3: Cross multiply
    558,892.80x = 838,339.20 × 402,595.20
  4. Step 4: Simplify right side
    558,892.80x = 337,511,337,891.84
  5. Step 5: Solve for x
    x = 337,511,337,891.84/558,892.80
  6. Step 6: Final answer
    x = 603,892.80

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Similar ratio
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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.