Home / 819,788.18-1,229,719.16-251,127.77

Finding the Fourth Proportional to 819,788.18, 1,229,719.16 and 251,127.77

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Solution

The fourth proportional to 819,788.18, 1,229,719.16 and 251,127.77 is: 376,702.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,788.18 : 1,229,719.16 = 251,127.77 : x
  2. Step 2: Convert to fraction form
    819,788.18/1,229,719.16 = 251,127.77/x
  3. Step 3: Cross multiply
    819,788.18x = 1,229,719.16 × 251,127.77
  4. Step 4: Simplify right side
    819,788.18x = 308,816,624,856.30
  5. Step 5: Solve for x
    x = 308,816,624,856.30/819,788.18
  6. Step 6: Final answer
    x = 376,702.95

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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.