Home / 997,711.50-1,376,872.11-545,031.66

Finding the Fourth Proportional to 997,711.50, 1,376,872.11 and 545,031.66

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Solution

The fourth proportional to 997,711.50, 1,376,872.11 and 545,031.66 is: 752,160.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,711.50 : 1,376,872.11 = 545,031.66 : x
  2. Step 2: Convert to fraction form
    997,711.50/1,376,872.11 = 545,031.66/x
  3. Step 3: Cross multiply
    997,711.50x = 1,376,872.11 × 545,031.66
  4. Step 4: Simplify right side
    997,711.50x = 750,438,891,721.00
  5. Step 5: Solve for x
    x = 750,438,891,721.00/997,711.50
  6. Step 6: Final answer
    x = 752,160.21

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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.