Home / 891,178.15-1,229,826.17-483,279.87

Finding the Fourth Proportional to 891,178.15, 1,229,826.17 and 483,279.87

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Solution

The fourth proportional to 891,178.15, 1,229,826.17 and 483,279.87 is: 666,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,178.15 : 1,229,826.17 = 483,279.87 : x
  2. Step 2: Convert to fraction form
    891,178.15/1,229,826.17 = 483,279.87/x
  3. Step 3: Cross multiply
    891,178.15x = 1,229,826.17 × 483,279.87
  4. Step 4: Simplify right side
    891,178.15x = 594,350,231,560.20
  5. Step 5: Solve for x
    x = 594,350,231,560.20/891,178.15
  6. Step 6: Final answer
    x = 666,926.40

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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.