Home / 981,031.84-1,353,805.86-551,305.78

Finding the Fourth Proportional to 981,031.84, 1,353,805.86 and 551,305.78

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Solution

The fourth proportional to 981,031.84, 1,353,805.86 and 551,305.78 is: 760,791.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,031.84 : 1,353,805.86 = 551,305.78 : x
  2. Step 2: Convert to fraction form
    981,031.84/1,353,805.86 = 551,305.78/x
  3. Step 3: Cross multiply
    981,031.84x = 1,353,805.86 × 551,305.78
  4. Step 4: Simplify right side
    981,031.84x = 746,360,995,615.87
  5. Step 5: Solve for x
    x = 746,360,995,615.87/981,031.84
  6. Step 6: Final answer
    x = 760,791.82

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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.