Home / 424,478.03-636,497.94-124,919.72

Finding the Fourth Proportional to 424,478.03, 636,497.94 and 124,919.72

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Solution

The fourth proportional to 424,478.03, 636,497.94 and 124,919.72 is: 187,315.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,478.03 : 636,497.94 = 124,919.72 : x
  2. Step 2: Convert to fraction form
    424,478.03/636,497.94 = 124,919.72/x
  3. Step 3: Cross multiply
    424,478.03x = 636,497.94 × 124,919.72
  4. Step 4: Simplify right side
    424,478.03x = 79,511,141,262.89
  5. Step 5: Solve for x
    x = 79,511,141,262.89/424,478.03
  6. Step 6: Final answer
    x = 187,315.09

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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.