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Finding the Fourth Proportional to 636,614.76, 954,774.03 and 187,215.42

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Solution

The fourth proportional to 636,614.76, 954,774.03 and 187,215.42 is: 280,779.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,614.76 : 954,774.03 = 187,215.42 : x
  2. Step 2: Convert to fraction form
    636,614.76/954,774.03 = 187,215.42/x
  3. Step 3: Cross multiply
    636,614.76x = 954,774.03 × 187,215.42
  4. Step 4: Simplify right side
    636,614.76x = 178,748,421,031.54
  5. Step 5: Solve for x
    x = 178,748,421,031.54/636,614.76
  6. Step 6: Final answer
    x = 280,779.57

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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.