Home / 520,724.16-781,092.72-165,736.80

Finding the Fourth Proportional to 520,724.16, 781,092.72 and 165,736.80

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Solution

The fourth proportional to 520,724.16, 781,092.72 and 165,736.80 is: 248,607.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,724.16 : 781,092.72 = 165,736.80 : x
  2. Step 2: Convert to fraction form
    520,724.16/781,092.72 = 165,736.80/x
  3. Step 3: Cross multiply
    520,724.16x = 781,092.72 × 165,736.80
  4. Step 4: Simplify right side
    520,724.16x = 129,455,807,916.10
  5. Step 5: Solve for x
    x = 129,455,807,916.10/520,724.16
  6. Step 6: Final answer
    x = 248,607.26

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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.