Home / 819,020.80-1,229,260.20-481,639.60

Finding the Fourth Proportional to 819,020.80, 1,229,260.20 and 481,639.60

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Solution

The fourth proportional to 819,020.80, 1,229,260.20 and 481,639.60 is: 722,888.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,020.80 : 1,229,260.20 = 481,639.60 : x
  2. Step 2: Convert to fraction form
    819,020.80/1,229,260.20 = 481,639.60/x
  3. Step 3: Cross multiply
    819,020.80x = 1,229,260.20 × 481,639.60
  4. Step 4: Simplify right side
    819,020.80x = 592,060,391,023.92
  5. Step 5: Solve for x
    x = 592,060,391,023.92/819,020.80
  6. Step 6: Final answer
    x = 722,888.10

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1.5x scale

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.