Home / 2,591,821.80-3,887,732.70-1,645,871.40

Finding the Fourth Proportional to 2,591,821.80, 3,887,732.70 and 1,645,871.40

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Solution

The fourth proportional to 2,591,821.80, 3,887,732.70 and 1,645,871.40 is: 2,468,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591,821.80 : 3,887,732.70 = 1,645,871.40 : x
  2. Step 2: Convert to fraction form
    2,591,821.80/3,887,732.70 = 1,645,871.40/x
  3. Step 3: Cross multiply
    2,591,821.80x = 3,887,732.70 × 1,645,871.40
  4. Step 4: Simplify right side
    2,591,821.80x = 6,398,708,061,774.78
  5. Step 5: Solve for x
    x = 6,398,708,061,774.78/2,591,821.80
  6. Step 6: Final answer
    x = 2,468,807.10

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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.