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Finding the Fourth Proportional to 1,253,666, 1,730,059.08 and 717,122

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Solution

The fourth proportional to 1,253,666, 1,730,059.08 and 717,122 is: 989,628.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,666 : 1,730,059.08 = 717,122 : x
  2. Step 2: Convert to fraction form
    1,253,666/1,730,059.08 = 717,122/x
  3. Step 3: Cross multiply
    1,253,666x = 1,730,059.08 × 717,122
  4. Step 4: Simplify right side
    1,253,666x = 1,240,663,427,567.76
  5. Step 5: Solve for x
    x = 1,240,663,427,567.76/1,253,666
  6. Step 6: Final answer
    x = 989,628.36

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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.