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Finding the Fourth Proportional to 737,672.67, 1,105,286.11 and 257,642.57

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Solution

The fourth proportional to 737,672.67, 1,105,286.11 and 257,642.57 is: 386,036.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,672.67 : 1,105,286.11 = 257,642.57 : x
  2. Step 2: Convert to fraction form
    737,672.67/1,105,286.11 = 257,642.57/x
  3. Step 3: Cross multiply
    737,672.67x = 1,105,286.11 × 257,642.57
  4. Step 4: Simplify right side
    737,672.67x = 284,768,756,084.81
  5. Step 5: Solve for x
    x = 284,768,756,084.81/737,672.67
  6. Step 6: Final answer
    x = 386,036.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.