Home / 765,020.80-1,148,049.60-498,131.20

Finding the Fourth Proportional to 765,020.80, 1,148,049.60 and 498,131.20

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Solution

The fourth proportional to 765,020.80, 1,148,049.60 and 498,131.20 is: 747,534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,020.80 : 1,148,049.60 = 498,131.20 : x
  2. Step 2: Convert to fraction form
    765,020.80/1,148,049.60 = 498,131.20/x
  3. Step 3: Cross multiply
    765,020.80x = 1,148,049.60 × 498,131.20
  4. Step 4: Simplify right side
    765,020.80x = 571,879,324,907.52
  5. Step 5: Solve for x
    x = 571,879,324,907.52/765,020.80
  6. Step 6: Final answer
    x = 747,534.35

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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.