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Finding the Fourth Proportional to 2,734,400.80, 4,101,562.80 and 1,238,490.40

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Solution

The fourth proportional to 2,734,400.80, 4,101,562.80 and 1,238,490.40 is: 1,857,718.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,734,400.80 : 4,101,562.80 = 1,238,490.40 : x
  2. Step 2: Convert to fraction form
    2,734,400.80/4,101,562.80 = 1,238,490.40/x
  3. Step 3: Cross multiply
    2,734,400.80x = 4,101,562.80 × 1,238,490.40
  4. Step 4: Simplify right side
    2,734,400.80x = 5,079,746,152,797.12
  5. Step 5: Solve for x
    x = 5,079,746,152,797.12/2,734,400.80
  6. Step 6: Final answer
    x = 1,857,718.21

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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.