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Finding the Fourth Proportional to 502,416.20, 753,624.30 and 342,983.90

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Solution

The fourth proportional to 502,416.20, 753,624.30 and 342,983.90 is: 514,475.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,416.20 : 753,624.30 = 342,983.90 : x
  2. Step 2: Convert to fraction form
    502,416.20/753,624.30 = 342,983.90/x
  3. Step 3: Cross multiply
    502,416.20x = 753,624.30 × 342,983.90
  4. Step 4: Simplify right side
    502,416.20x = 258,481,001,548.77
  5. Step 5: Solve for x
    x = 258,481,001,548.77/502,416.20
  6. Step 6: Final answer
    x = 514,475.85

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Similar ratio
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1.5x scale

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.