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Finding the Fourth Proportional to 2,498,574.80, 3,746,940.60 and 815,733.20

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Solution

The fourth proportional to 2,498,574.80, 3,746,940.60 and 815,733.20 is: 1,223,298.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,498,574.80 : 3,746,940.60 = 815,733.20 : x
  2. Step 2: Convert to fraction form
    2,498,574.80/3,746,940.60 = 815,733.20/x
  3. Step 3: Cross multiply
    2,498,574.80x = 3,746,940.60 × 815,733.20
  4. Step 4: Simplify right side
    2,498,574.80x = 3,056,503,845,847.92
  5. Step 5: Solve for x
    x = 3,056,503,845,847.92/2,498,574.80
  6. Step 6: Final answer
    x = 1,223,298.92

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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.