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Finding the Fourth Proportional to 2,579,228.80, 3,868,843.20 and 896,502.40

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Solution

The fourth proportional to 2,579,228.80, 3,868,843.20 and 896,502.40 is: 1,344,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579,228.80 : 3,868,843.20 = 896,502.40 : x
  2. Step 2: Convert to fraction form
    2,579,228.80/3,868,843.20 = 896,502.40/x
  3. Step 3: Cross multiply
    2,579,228.80x = 3,868,843.20 × 896,502.40
  4. Step 4: Simplify right side
    2,579,228.80x = 3,468,427,214,023.68
  5. Step 5: Solve for x
    x = 3,468,427,214,023.68/2,579,228.80
  6. Step 6: Final answer
    x = 1,344,753.60

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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.