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Finding the Fourth Proportional to 552,310.38, 762,281.82 and 319,703.63

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Solution

The fourth proportional to 552,310.38, 762,281.82 and 319,703.63 is: 441,245.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,310.38 : 762,281.82 = 319,703.63 : x
  2. Step 2: Convert to fraction form
    552,310.38/762,281.82 = 319,703.63/x
  3. Step 3: Cross multiply
    552,310.38x = 762,281.82 × 319,703.63
  4. Step 4: Simplify right side
    552,310.38x = 243,704,261,125.60
  5. Step 5: Solve for x
    x = 243,704,261,125.60/552,310.38
  6. Step 6: Final answer
    x = 441,245.12

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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.