Home / 1,271,240.68-1,906,761.18-561,286.12

Finding the Fourth Proportional to 1,271,240.68, 1,906,761.18 and 561,286.12

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Solution

The fourth proportional to 1,271,240.68, 1,906,761.18 and 561,286.12 is: 841,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,240.68 : 1,906,761.18 = 561,286.12 : x
  2. Step 2: Convert to fraction form
    1,271,240.68/1,906,761.18 = 561,286.12/x
  3. Step 3: Cross multiply
    1,271,240.68x = 1,906,761.18 × 561,286.12
  4. Step 4: Simplify right side
    1,271,240.68x = 1,070,238,584,488.82
  5. Step 5: Solve for x
    x = 1,070,238,584,488.82/1,271,240.68
  6. Step 6: Final answer
    x = 841,885.10

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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.