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Finding the Fourth Proportional to 377,387.52, 520,794 and 207,621.24

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Solution

The fourth proportional to 377,387.52, 520,794 and 207,621.24 is: 286,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,387.52 : 520,794 = 207,621.24 : x
  2. Step 2: Convert to fraction form
    377,387.52/520,794 = 207,621.24/x
  3. Step 3: Cross multiply
    377,387.52x = 520,794 × 207,621.24
  4. Step 4: Simplify right side
    377,387.52x = 108,127,896,064.56
  5. Step 5: Solve for x
    x = 108,127,896,064.56/377,387.52
  6. Step 6: Final answer
    x = 286,516.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.