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Finding the Fourth Proportional to 624.91, 862.39 and 362.91

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Solution

The fourth proportional to 624.91, 862.39 and 362.91 is: 500.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.91 : 862.39 = 362.91 : x
  2. Step 2: Convert to fraction form
    624.91/862.39 = 362.91/x
  3. Step 3: Cross multiply
    624.91x = 862.39 × 362.91
  4. Step 4: Simplify right side
    624.91x = 312,969.95
  5. Step 5: Solve for x
    x = 312,969.95/624.91
  6. Step 6: Final answer
    x = 500.82

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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.