Home / 687,956-1,031,979.50-182,509.88

Finding the Fourth Proportional to 687,956, 1,031,979.50 and 182,509.88

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Solution

The fourth proportional to 687,956, 1,031,979.50 and 182,509.88 is: 273,776.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,956 : 1,031,979.50 = 182,509.88 : x
  2. Step 2: Convert to fraction form
    687,956/1,031,979.50 = 182,509.88/x
  3. Step 3: Cross multiply
    687,956x = 1,031,979.50 × 182,509.88
  4. Step 4: Simplify right side
    687,956x = 188,346,454,707.46
  5. Step 5: Solve for x
    x = 188,346,454,707.46/687,956
  6. Step 6: Final answer
    x = 273,776.89

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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.