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Finding the Fourth Proportional to 628.04, 867.13 and 471.02

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Solution

The fourth proportional to 628.04, 867.13 and 471.02 is: 650.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.04 : 867.13 = 471.02 : x
  2. Step 2: Convert to fraction form
    628.04/867.13 = 471.02/x
  3. Step 3: Cross multiply
    628.04x = 867.13 × 471.02
  4. Step 4: Simplify right side
    628.04x = 408,435.57
  5. Step 5: Solve for x
    x = 408,435.57/628.04
  6. Step 6: Final answer
    x = 650.33

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Double scale
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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.