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Finding the Fourth Proportional to 691,204.58, 953,663.57 and 449,842.42

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Solution

The fourth proportional to 691,204.58, 953,663.57 and 449,842.42 is: 620,653.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,204.58 : 953,663.57 = 449,842.42 : x
  2. Step 2: Convert to fraction form
    691,204.58/953,663.57 = 449,842.42/x
  3. Step 3: Cross multiply
    691,204.58x = 953,663.57 × 449,842.42
  4. Step 4: Simplify right side
    691,204.58x = 428,998,328,194.64
  5. Step 5: Solve for x
    x = 428,998,328,194.64/691,204.58
  6. Step 6: Final answer
    x = 620,653.19

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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.