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Finding the Fourth Proportional to 580.32, 800.76 and 347.52

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Solution

The fourth proportional to 580.32, 800.76 and 347.52 is: 479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.32 : 800.76 = 347.52 : x
  2. Step 2: Convert to fraction form
    580.32/800.76 = 347.52/x
  3. Step 3: Cross multiply
    580.32x = 800.76 × 347.52
  4. Step 4: Simplify right side
    580.32x = 278,280.12
  5. Step 5: Solve for x
    x = 278,280.12/580.32
  6. Step 6: Final answer
    x = 479.53

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1.5x scale

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.