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Finding the Fourth Proportional to 636,704.55, 954,728.16 and 187,367.07

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Solution

The fourth proportional to 636,704.55, 954,728.16 and 187,367.07 is: 280,953.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,704.55 : 954,728.16 = 187,367.07 : x
  2. Step 2: Convert to fraction form
    636,704.55/954,728.16 = 187,367.07/x
  3. Step 3: Cross multiply
    636,704.55x = 954,728.16 × 187,367.07
  4. Step 4: Simplify right side
    636,704.55x = 178,884,617,985.69
  5. Step 5: Solve for x
    x = 178,884,617,985.69/636,704.55
  6. Step 6: Final answer
    x = 280,953.89

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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.