Home / 916,812.30-1,375,218.45-834,143.70

Finding the Fourth Proportional to 916,812.30, 1,375,218.45 and 834,143.70

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Solution

The fourth proportional to 916,812.30, 1,375,218.45 and 834,143.70 is: 1,251,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,812.30 : 1,375,218.45 = 834,143.70 : x
  2. Step 2: Convert to fraction form
    916,812.30/1,375,218.45 = 834,143.70/x
  3. Step 3: Cross multiply
    916,812.30x = 1,375,218.45 × 834,143.70
  4. Step 4: Simplify right side
    916,812.30x = 1,147,129,806,191.26
  5. Step 5: Solve for x
    x = 1,147,129,806,191.26/916,812.30
  6. Step 6: Final answer
    x = 1,251,215.55

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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.