Home / 778,220.90-1,167,367.13-238,438.52

Finding the Fourth Proportional to 778,220.90, 1,167,367.13 and 238,438.52

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Solution

The fourth proportional to 778,220.90, 1,167,367.13 and 238,438.52 is: 357,668.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,220.90 : 1,167,367.13 = 238,438.52 : x
  2. Step 2: Convert to fraction form
    778,220.90/1,167,367.13 = 238,438.52/x
  3. Step 3: Cross multiply
    778,220.90x = 1,167,367.13 × 238,438.52
  4. Step 4: Simplify right side
    778,220.90x = 278,345,290,773.85
  5. Step 5: Solve for x
    x = 278,345,290,773.85/778,220.90
  6. Step 6: Final answer
    x = 357,668.74

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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.