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Finding the Fourth Proportional to 490,082.10, 735,123.15 and 370,331.70

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Solution

The fourth proportional to 490,082.10, 735,123.15 and 370,331.70 is: 555,497.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,082.10 : 735,123.15 = 370,331.70 : x
  2. Step 2: Convert to fraction form
    490,082.10/735,123.15 = 370,331.70/x
  3. Step 3: Cross multiply
    490,082.10x = 735,123.15 × 370,331.70
  4. Step 4: Simplify right side
    490,082.10x = 272,239,405,848.86
  5. Step 5: Solve for x
    x = 272,239,405,848.86/490,082.10
  6. Step 6: Final answer
    x = 555,497.55

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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.