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Finding the Fourth Proportional to 552,288, 762,152.67 and 310,565.43

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Solution

The fourth proportional to 552,288, 762,152.67 and 310,565.43 is: 428,577.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,288 : 762,152.67 = 310,565.43 : x
  2. Step 2: Convert to fraction form
    552,288/762,152.67 = 310,565.43/x
  3. Step 3: Cross multiply
    552,288x = 762,152.67 × 310,565.43
  4. Step 4: Simplify right side
    552,288x = 236,698,271,684.20
  5. Step 5: Solve for x
    x = 236,698,271,684.20/552,288
  6. Step 6: Final answer
    x = 428,577.61

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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.