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Finding the Fourth Proportional to 636,713.40, 954,966.06 and 187,329.18

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Solution

The fourth proportional to 636,713.40, 954,966.06 and 187,329.18 is: 280,963.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,713.40 : 954,966.06 = 187,329.18 : x
  2. Step 2: Convert to fraction form
    636,713.40/954,966.06 = 187,329.18/x
  3. Step 3: Cross multiply
    636,713.40x = 954,966.06 × 187,329.18
  4. Step 4: Simplify right side
    636,713.40x = 178,893,008,947.63
  5. Step 5: Solve for x
    x = 178,893,008,947.63/636,713.40
  6. Step 6: Final answer
    x = 280,963.16

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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.