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Finding the Fourth Proportional to 424,457.47, 636,616.98 and 124,867.98

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Solution

The fourth proportional to 424,457.47, 636,616.98 and 124,867.98 is: 187,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,457.47 : 636,616.98 = 124,867.98 : x
  2. Step 2: Convert to fraction form
    424,457.47/636,616.98 = 124,867.98/x
  3. Step 3: Cross multiply
    424,457.47x = 636,616.98 × 124,867.98
  4. Step 4: Simplify right side
    424,457.47x = 79,493,076,326.30
  5. Step 5: Solve for x
    x = 79,493,076,326.30/424,457.47
  6. Step 6: Final answer
    x = 187,281.61

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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.