Home / 1,271,872.40-1,754,801.16-762,388.88

Finding the Fourth Proportional to 1,271,872.40, 1,754,801.16 and 762,388.88

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Solution

The fourth proportional to 1,271,872.40, 1,754,801.16 and 762,388.88 is: 1,051,867.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,872.40 : 1,754,801.16 = 762,388.88 : x
  2. Step 2: Convert to fraction form
    1,271,872.40/1,754,801.16 = 762,388.88/x
  3. Step 3: Cross multiply
    1,271,872.40x = 1,754,801.16 × 762,388.88
  4. Step 4: Simplify right side
    1,271,872.40x = 1,337,840,890,995.10
  5. Step 5: Solve for x
    x = 1,337,840,890,995.10/1,271,872.40
  6. Step 6: Final answer
    x = 1,051,867.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.