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Finding the Fourth Proportional to 552,207.12, 762,037.44 and 310,490.16

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Solution

The fourth proportional to 552,207.12, 762,037.44 and 310,490.16 is: 428,471.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,207.12 : 762,037.44 = 310,490.16 : x
  2. Step 2: Convert to fraction form
    552,207.12/762,037.44 = 310,490.16/x
  3. Step 3: Cross multiply
    552,207.12x = 762,037.44 × 310,490.16
  4. Step 4: Simplify right side
    552,207.12x = 236,605,126,671.59
  5. Step 5: Solve for x
    x = 236,605,126,671.59/552,207.12
  6. Step 6: Final answer
    x = 428,471.71

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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.