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Finding the Fourth Proportional to 636,678.93, 954,914.60 and 187,294.72

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Solution

The fourth proportional to 636,678.93, 954,914.60 and 187,294.72 is: 280,911.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,678.93 : 954,914.60 = 187,294.72 : x
  2. Step 2: Convert to fraction form
    636,678.93/954,914.60 = 187,294.72/x
  3. Step 3: Cross multiply
    636,678.93x = 954,914.60 × 187,294.72
  4. Step 4: Simplify right side
    636,678.93x = 178,850,462,630.91
  5. Step 5: Solve for x
    x = 178,850,462,630.91/636,678.93
  6. Step 6: Final answer
    x = 280,911.55

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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.