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Finding the Fourth Proportional to 537,740.20, 807,047.70 and 520,244.20

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Solution

The fourth proportional to 537,740.20, 807,047.70 and 520,244.20 is: 780,789.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,740.20 : 807,047.70 = 520,244.20 : x
  2. Step 2: Convert to fraction form
    537,740.20/807,047.70 = 520,244.20/x
  3. Step 3: Cross multiply
    537,740.20x = 807,047.70 × 520,244.20
  4. Step 4: Simplify right side
    537,740.20x = 419,861,885,048.34
  5. Step 5: Solve for x
    x = 419,861,885,048.34/537,740.20
  6. Step 6: Final answer
    x = 780,789.47

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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.