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Finding the Fourth Proportional to 556,442.64, 767,127.24 and 372,609.36

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Solution

The fourth proportional to 556,442.64, 767,127.24 and 372,609.36 is: 513,689.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,442.64 : 767,127.24 = 372,609.36 : x
  2. Step 2: Convert to fraction form
    556,442.64/767,127.24 = 372,609.36/x
  3. Step 3: Cross multiply
    556,442.64x = 767,127.24 × 372,609.36
  4. Step 4: Simplify right side
    556,442.64x = 285,838,789,934.97
  5. Step 5: Solve for x
    x = 285,838,789,934.97/556,442.64
  6. Step 6: Final answer
    x = 513,689.59

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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.