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Finding the Fourth Proportional to 520,812.72, 781,219.08 and 165,935.52

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Solution

The fourth proportional to 520,812.72, 781,219.08 and 165,935.52 is: 248,903.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,812.72 : 781,219.08 = 165,935.52 : x
  2. Step 2: Convert to fraction form
    520,812.72/781,219.08 = 165,935.52/x
  3. Step 3: Cross multiply
    520,812.72x = 781,219.08 × 165,935.52
  4. Step 4: Simplify right side
    520,812.72x = 129,631,994,273.72
  5. Step 5: Solve for x
    x = 129,631,994,273.72/520,812.72
  6. Step 6: Final answer
    x = 248,903.28

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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.