Home / 755,842.20-1,132,451.10-489,465.60

Finding the Fourth Proportional to 755,842.20, 1,132,451.10 and 489,465.60

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Solution

The fourth proportional to 755,842.20, 1,132,451.10 and 489,465.60 is: 733,348.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,842.20 : 1,132,451.10 = 489,465.60 : x
  2. Step 2: Convert to fraction form
    755,842.20/1,132,451.10 = 489,465.60/x
  3. Step 3: Cross multiply
    755,842.20x = 1,132,451.10 × 489,465.60
  4. Step 4: Simplify right side
    755,842.20x = 554,295,857,132.16
  5. Step 5: Solve for x
    x = 554,295,857,132.16/755,842.20
  6. Step 6: Final answer
    x = 733,348.65

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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.