Home / 1,271,558.45-1,754,752.21-690,781.97

Finding the Fourth Proportional to 1,271,558.45, 1,754,752.21 and 690,781.97

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Solution

The fourth proportional to 1,271,558.45, 1,754,752.21 and 690,781.97 is: 953,279.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,558.45 : 1,754,752.21 = 690,781.97 : x
  2. Step 2: Convert to fraction form
    1,271,558.45/1,754,752.21 = 690,781.97/x
  3. Step 3: Cross multiply
    1,271,558.45x = 1,754,752.21 × 690,781.97
  4. Step 4: Simplify right side
    1,271,558.45x = 1,212,151,191,145.58
  5. Step 5: Solve for x
    x = 1,212,151,191,145.58/1,271,558.45
  6. Step 6: Final answer
    x = 953,279.96

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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.