Home / 791,215.82-1,091,876.51-428,648.88

Finding the Fourth Proportional to 791,215.82, 1,091,876.51 and 428,648.88

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Solution

The fourth proportional to 791,215.82, 1,091,876.51 and 428,648.88 is: 591,534.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,215.82 : 1,091,876.51 = 428,648.88 : x
  2. Step 2: Convert to fraction form
    791,215.82/1,091,876.51 = 428,648.88/x
  3. Step 3: Cross multiply
    791,215.82x = 1,091,876.51 × 428,648.88
  4. Step 4: Simplify right side
    791,215.82x = 468,031,640,966.56
  5. Step 5: Solve for x
    x = 468,031,640,966.56/791,215.82
  6. Step 6: Final answer
    x = 591,534.74

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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.