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Finding the Fourth Proportional to 636,406.02, 954,474.77 and 187,004.86

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Solution

The fourth proportional to 636,406.02, 954,474.77 and 187,004.86 is: 280,467.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,406.02 : 954,474.77 = 187,004.86 : x
  2. Step 2: Convert to fraction form
    636,406.02/954,474.77 = 187,004.86/x
  3. Step 3: Cross multiply
    636,406.02x = 954,474.77 × 187,004.86
  4. Step 4: Simplify right side
    636,406.02x = 178,491,418,818.71
  5. Step 5: Solve for x
    x = 178,491,418,818.71/636,406.02
  6. Step 6: Final answer
    x = 280,467.84

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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.