Home / 817,818.30-1,228,801.05-726,579.90

Finding the Fourth Proportional to 817,818.30, 1,228,801.05 and 726,579.90

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Solution

The fourth proportional to 817,818.30, 1,228,801.05 and 726,579.90 is: 1,091,712.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,818.30 : 1,228,801.05 = 726,579.90 : x
  2. Step 2: Convert to fraction form
    817,818.30/1,228,801.05 = 726,579.90/x
  3. Step 3: Cross multiply
    817,818.30x = 1,228,801.05 × 726,579.90
  4. Step 4: Simplify right side
    817,818.30x = 892,822,144,028.90
  5. Step 5: Solve for x
    x = 892,822,144,028.90/817,818.30
  6. Step 6: Final answer
    x = 1,091,712.11

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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.