Home / 424,479.03-636,499.44-124,920.72

Finding the Fourth Proportional to 424,479.03, 636,499.44 and 124,920.72

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Solution

The fourth proportional to 424,479.03, 636,499.44 and 124,920.72 is: 187,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,479.03 : 636,499.44 = 124,920.72 : x
  2. Step 2: Convert to fraction form
    424,479.03/636,499.44 = 124,920.72/x
  3. Step 3: Cross multiply
    424,479.03x = 636,499.44 × 124,920.72
  4. Step 4: Simplify right side
    424,479.03x = 79,511,968,324.40
  5. Step 5: Solve for x
    x = 79,511,968,324.40/424,479.03
  6. Step 6: Final answer
    x = 187,316.60

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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.