Home / 424,316.49-636,385.10-124,715.58

Finding the Fourth Proportional to 424,316.49, 636,385.10 and 124,715.58

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Solution

The fourth proportional to 424,316.49, 636,385.10 and 124,715.58 is: 187,047.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,316.49 : 636,385.10 = 124,715.58 : x
  2. Step 2: Convert to fraction form
    424,316.49/636,385.10 = 124,715.58/x
  3. Step 3: Cross multiply
    424,316.49x = 636,385.10 × 124,715.58
  4. Step 4: Simplify right side
    424,316.49x = 79,367,138,129.03
  5. Step 5: Solve for x
    x = 79,367,138,129.03/424,316.49
  6. Step 6: Final answer
    x = 187,047.03

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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.