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Finding the Fourth Proportional to 636,406.27, 954,609.06 and 187,130.86

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Solution

The fourth proportional to 636,406.27, 954,609.06 and 187,130.86 is: 280,696.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,406.27 : 954,609.06 = 187,130.86 : x
  2. Step 2: Convert to fraction form
    636,406.27/954,609.06 = 187,130.86/x
  3. Step 3: Cross multiply
    636,406.27x = 954,609.06 × 187,130.86
  4. Step 4: Simplify right side
    636,406.27x = 178,636,814,361.59
  5. Step 5: Solve for x
    x = 178,636,814,361.59/636,406.27
  6. Step 6: Final answer
    x = 280,696.19

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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.