Home / 687,637.26-1,031,432.97-282,815.46

Finding the Fourth Proportional to 687,637.26, 1,031,432.97 and 282,815.46

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Solution

The fourth proportional to 687,637.26, 1,031,432.97 and 282,815.46 is: 424,213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,637.26 : 1,031,432.97 = 282,815.46 : x
  2. Step 2: Convert to fraction form
    687,637.26/1,031,432.97 = 282,815.46/x
  3. Step 3: Cross multiply
    687,637.26x = 1,031,432.97 × 282,815.46
  4. Step 4: Simplify right side
    687,637.26x = 291,705,189,869.72
  5. Step 5: Solve for x
    x = 291,705,189,869.72/687,637.26
  6. Step 6: Final answer
    x = 424,213.76

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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.