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Finding the Fourth Proportional to 424,332.41, 636,479.47 and 124,822.76

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Solution

The fourth proportional to 424,332.41, 636,479.47 and 124,822.76 is: 187,228.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,332.41 : 636,479.47 = 124,822.76 : x
  2. Step 2: Convert to fraction form
    424,332.41/636,479.47 = 124,822.76/x
  3. Step 3: Cross multiply
    424,332.41x = 636,479.47 × 124,822.76
  4. Step 4: Simplify right side
    424,332.41x = 79,447,121,102.37
  5. Step 5: Solve for x
    x = 79,447,121,102.37/424,332.41
  6. Step 6: Final answer
    x = 187,228.50

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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.