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Finding the Fourth Proportional to 1,253,667, 1,730,060.46 and 717,123

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Solution

The fourth proportional to 1,253,667, 1,730,060.46 and 717,123 is: 989,629.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,667 : 1,730,060.46 = 717,123 : x
  2. Step 2: Convert to fraction form
    1,253,667/1,730,060.46 = 717,123/x
  3. Step 3: Cross multiply
    1,253,667x = 1,730,060.46 × 717,123
  4. Step 4: Simplify right side
    1,253,667x = 1,240,666,147,256.58
  5. Step 5: Solve for x
    x = 1,240,666,147,256.58/1,253,667
  6. Step 6: Final answer
    x = 989,629.74

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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.