Home / 819,508.48-1,228,210.67-392,404.32

Finding the Fourth Proportional to 819,508.48, 1,228,210.67 and 392,404.32

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Solution

The fourth proportional to 819,508.48, 1,228,210.67 and 392,404.32 is: 588,102.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,508.48 : 1,228,210.67 = 392,404.32 : x
  2. Step 2: Convert to fraction form
    819,508.48/1,228,210.67 = 392,404.32/x
  3. Step 3: Cross multiply
    819,508.48x = 1,228,210.67 × 392,404.32
  4. Step 4: Simplify right side
    819,508.48x = 481,955,173,759.11
  5. Step 5: Solve for x
    x = 481,955,173,759.11/819,508.48
  6. Step 6: Final answer
    x = 588,102.73

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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.