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Finding the Fourth Proportional to 1,447.06, 2,170.63 and 473.17

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Solution

The fourth proportional to 1,447.06, 2,170.63 and 473.17 is: 709.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.06 : 2,170.63 = 473.17 : x
  2. Step 2: Convert to fraction form
    1,447.06/2,170.63 = 473.17/x
  3. Step 3: Cross multiply
    1,447.06x = 2,170.63 × 473.17
  4. Step 4: Simplify right side
    1,447.06x = 1,027,077.00
  5. Step 5: Solve for x
    x = 1,027,077.00/1,447.06
  6. Step 6: Final answer
    x = 709.77

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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.