Home / 424,531.89-636,668.22-120,950.84

Finding the Fourth Proportional to 424,531.89, 636,668.22 and 120,950.84

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Solution

The fourth proportional to 424,531.89, 636,668.22 and 120,950.84 is: 181,389.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,531.89 : 636,668.22 = 120,950.84 : x
  2. Step 2: Convert to fraction form
    424,531.89/636,668.22 = 120,950.84/x
  3. Step 3: Cross multiply
    424,531.89x = 636,668.22 × 120,950.84
  4. Step 4: Simplify right side
    424,531.89x = 77,005,552,826.96
  5. Step 5: Solve for x
    x = 77,005,552,826.96/424,531.89
  6. Step 6: Final answer
    x = 181,389.32

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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.