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Finding the Fourth Proportional to 687,955, 1,031,978 and 182,508.88

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Solution

The fourth proportional to 687,955, 1,031,978 and 182,508.88 is: 273,775.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,955 : 1,031,978 = 182,508.88 : x
  2. Step 2: Convert to fraction form
    687,955/1,031,978 = 182,508.88/x
  3. Step 3: Cross multiply
    687,955x = 1,031,978 × 182,508.88
  4. Step 4: Simplify right side
    687,955x = 188,345,148,964.64
  5. Step 5: Solve for x
    x = 188,345,148,964.64/687,955
  6. Step 6: Final answer
    x = 273,775.39

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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.