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Finding the Fourth Proportional to 560,205.09, 773,148.38 and 318,523.88

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Solution

The fourth proportional to 560,205.09, 773,148.38 and 318,523.88 is: 439,600.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,205.09 : 773,148.38 = 318,523.88 : x
  2. Step 2: Convert to fraction form
    560,205.09/773,148.38 = 318,523.88/x
  3. Step 3: Cross multiply
    560,205.09x = 773,148.38 × 318,523.88
  4. Step 4: Simplify right side
    560,205.09x = 246,266,218,743.88
  5. Step 5: Solve for x
    x = 246,266,218,743.88/560,205.09
  6. Step 6: Final answer
    x = 439,600.11

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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.