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Finding the Fourth Proportional to 527.39, 790.31 and 362.69

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Solution

The fourth proportional to 527.39, 790.31 and 362.69 is: 543.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.39 : 790.31 = 362.69 : x
  2. Step 2: Convert to fraction form
    527.39/790.31 = 362.69/x
  3. Step 3: Cross multiply
    527.39x = 790.31 × 362.69
  4. Step 4: Simplify right side
    527.39x = 286,634.49
  5. Step 5: Solve for x
    x = 286,634.49/527.39
  6. Step 6: Final answer
    x = 543.50

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.