Home / 687,373.25-1,031,150.42-255,031.88

Finding the Fourth Proportional to 687,373.25, 1,031,150.42 and 255,031.88

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Solution

The fourth proportional to 687,373.25, 1,031,150.42 and 255,031.88 is: 382,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,373.25 : 1,031,150.42 = 255,031.88 : x
  2. Step 2: Convert to fraction form
    687,373.25/1,031,150.42 = 255,031.88/x
  3. Step 3: Cross multiply
    687,373.25x = 1,031,150.42 × 255,031.88
  4. Step 4: Simplify right side
    687,373.25x = 262,976,230,395.90
  5. Step 5: Solve for x
    x = 262,976,230,395.90/687,373.25
  6. Step 6: Final answer
    x = 382,581.42

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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.