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Finding the Fourth Proportional to 582.55, 803.72 and 372.76

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Solution

The fourth proportional to 582.55, 803.72 and 372.76 is: 514.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.55 : 803.72 = 372.76 : x
  2. Step 2: Convert to fraction form
    582.55/803.72 = 372.76/x
  3. Step 3: Cross multiply
    582.55x = 803.72 × 372.76
  4. Step 4: Simplify right side
    582.55x = 299,592.80
  5. Step 5: Solve for x
    x = 299,592.80/582.55
  6. Step 6: Final answer
    x = 514.28

Related Problems

Find fourth proportional to 291.28, 401.86 and 186.38
Half scale
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Double scale
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Similar ratio
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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.