Home / 687,488.63-1,031,260.91-327,474.41

Finding the Fourth Proportional to 687,488.63, 1,031,260.91 and 327,474.41

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Solution

The fourth proportional to 687,488.63, 1,031,260.91 and 327,474.41 is: 491,224.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,488.63 : 1,031,260.91 = 327,474.41 : x
  2. Step 2: Convert to fraction form
    687,488.63/1,031,260.91 = 327,474.41/x
  3. Step 3: Cross multiply
    687,488.63x = 1,031,260.91 × 327,474.41
  4. Step 4: Simplify right side
    687,488.63x = 337,711,551,264.64
  5. Step 5: Solve for x
    x = 337,711,551,264.64/687,488.63
  6. Step 6: Final answer
    x = 491,224.93

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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.