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Finding the Fourth Proportional to 424,471.66, 636,488.35 and 124,913.32

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Solution

The fourth proportional to 424,471.66, 636,488.35 and 124,913.32 is: 187,305.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,471.66 : 636,488.35 = 124,913.32 : x
  2. Step 2: Convert to fraction form
    424,471.66/636,488.35 = 124,913.32/x
  3. Step 3: Cross multiply
    424,471.66x = 636,488.35 × 124,913.32
  4. Step 4: Simplify right side
    424,471.66x = 79,505,872,939.82
  5. Step 5: Solve for x
    x = 79,505,872,939.82/424,471.66
  6. Step 6: Final answer
    x = 187,305.49

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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.