Home / 1,066.19-1,471.29-624.11

Finding the Fourth Proportional to 1,066.19, 1,471.29 and 624.11

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Solution

The fourth proportional to 1,066.19, 1,471.29 and 624.11 is: 861.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066.19 : 1,471.29 = 624.11 : x
  2. Step 2: Convert to fraction form
    1,066.19/1,471.29 = 624.11/x
  3. Step 3: Cross multiply
    1,066.19x = 1,471.29 × 624.11
  4. Step 4: Simplify right side
    1,066.19x = 918,246.80
  5. Step 5: Solve for x
    x = 918,246.80/1,066.19
  6. Step 6: Final answer
    x = 861.24

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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.