Home / 819,990.14-1,230,340.43-440,468.04

Finding the Fourth Proportional to 819,990.14, 1,230,340.43 and 440,468.04

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Solution

The fourth proportional to 819,990.14, 1,230,340.43 and 440,468.04 is: 660,892.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,990.14 : 1,230,340.43 = 440,468.04 : x
  2. Step 2: Convert to fraction form
    819,990.14/1,230,340.43 = 440,468.04/x
  3. Step 3: Cross multiply
    819,990.14x = 1,230,340.43 × 440,468.04
  4. Step 4: Simplify right side
    819,990.14x = 541,925,635,532.52
  5. Step 5: Solve for x
    x = 541,925,635,532.52/819,990.14
  6. Step 6: Final answer
    x = 660,892.87

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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.