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Finding the Fourth Proportional to 552,655.20, 762,609.82 and 310,932.58

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Solution

The fourth proportional to 552,655.20, 762,609.82 and 310,932.58 is: 429,056.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,655.20 : 762,609.82 = 310,932.58 : x
  2. Step 2: Convert to fraction form
    552,655.20/762,609.82 = 310,932.58/x
  3. Step 3: Cross multiply
    552,655.20x = 762,609.82 × 310,932.58
  4. Step 4: Simplify right side
    552,655.20x = 237,120,238,865.94
  5. Step 5: Solve for x
    x = 237,120,238,865.94/552,655.20
  6. Step 6: Final answer
    x = 429,056.38

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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.