Home / 1,031.32-1,423.26-565.60

Finding the Fourth Proportional to 1,031.32, 1,423.26 and 565.60

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Solution

The fourth proportional to 1,031.32, 1,423.26 and 565.60 is: 780.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.32 : 1,423.26 = 565.60 : x
  2. Step 2: Convert to fraction form
    1,031.32/1,423.26 = 565.60/x
  3. Step 3: Cross multiply
    1,031.32x = 1,423.26 × 565.60
  4. Step 4: Simplify right side
    1,031.32x = 804,995.86
  5. Step 5: Solve for x
    x = 804,995.86/1,031.32
  6. Step 6: Final answer
    x = 780.55

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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.