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Finding the Fourth Proportional to 636,678.52, 954,913.95 and 187,294.28

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Solution

The fourth proportional to 636,678.52, 954,913.95 and 187,294.28 is: 280,910.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,678.52 : 954,913.95 = 187,294.28 : x
  2. Step 2: Convert to fraction form
    636,678.52/954,913.95 = 187,294.28/x
  3. Step 3: Cross multiply
    636,678.52x = 954,913.95 × 187,294.28
  4. Step 4: Simplify right side
    636,678.52x = 178,849,915,952.64
  5. Step 5: Solve for x
    x = 178,849,915,952.64/636,678.52
  6. Step 6: Final answer
    x = 280,910.87

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1.5x scale

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.