Home / 819,287.80-1,228,931.70-441,374.20

Finding the Fourth Proportional to 819,287.80, 1,228,931.70 and 441,374.20

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Solution

The fourth proportional to 819,287.80, 1,228,931.70 and 441,374.20 is: 662,061.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,287.80 : 1,228,931.70 = 441,374.20 : x
  2. Step 2: Convert to fraction form
    819,287.80/1,228,931.70 = 441,374.20/x
  3. Step 3: Cross multiply
    819,287.80x = 1,228,931.70 × 441,374.20
  4. Step 4: Simplify right side
    819,287.80x = 542,418,745,942.14
  5. Step 5: Solve for x
    x = 542,418,745,942.14/819,287.80
  6. Step 6: Final answer
    x = 662,061.30

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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.