Home / 687,524.94-1,031,315.05-327,510.72

Finding the Fourth Proportional to 687,524.94, 1,031,315.05 and 327,510.72

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Solution

The fourth proportional to 687,524.94, 1,031,315.05 and 327,510.72 is: 491,279.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,524.94 : 1,031,315.05 = 327,510.72 : x
  2. Step 2: Convert to fraction form
    687,524.94/1,031,315.05 = 327,510.72/x
  3. Step 3: Cross multiply
    687,524.94x = 1,031,315.05 × 327,510.72
  4. Step 4: Simplify right side
    687,524.94x = 337,766,734,572.34
  5. Step 5: Solve for x
    x = 337,766,734,572.34/687,524.94
  6. Step 6: Final answer
    x = 491,279.25

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1.5x scale

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.