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Finding the Fourth Proportional to 479,764.80, 718,084.89 and 353,355.30

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Solution

The fourth proportional to 479,764.80, 718,084.89 and 353,355.30 is: 528,882.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,764.80 : 718,084.89 = 353,355.30 : x
  2. Step 2: Convert to fraction form
    479,764.80/718,084.89 = 353,355.30/x
  3. Step 3: Cross multiply
    479,764.80x = 718,084.89 × 353,355.30
  4. Step 4: Simplify right side
    479,764.80x = 253,739,101,731.42
  5. Step 5: Solve for x
    x = 253,739,101,731.42/479,764.80
  6. Step 6: Final answer
    x = 528,882.28

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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.