Home / 819,938.20-1,230,425.70-482,978.20

Finding the Fourth Proportional to 819,938.20, 1,230,425.70 and 482,978.20

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Solution

The fourth proportional to 819,938.20, 1,230,425.70 and 482,978.20 is: 724,772.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,938.20 : 1,230,425.70 = 482,978.20 : x
  2. Step 2: Convert to fraction form
    819,938.20/1,230,425.70 = 482,978.20/x
  3. Step 3: Cross multiply
    819,938.20x = 1,230,425.70 × 482,978.20
  4. Step 4: Simplify right side
    819,938.20x = 594,268,789,819.74
  5. Step 5: Solve for x
    x = 594,268,789,819.74/819,938.20
  6. Step 6: Final answer
    x = 724,772.66

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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.