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Finding the Fourth Proportional to 1,253,668, 1,730,061.84 and 717,124

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Solution

The fourth proportional to 1,253,668, 1,730,061.84 and 717,124 is: 989,631.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,668 : 1,730,061.84 = 717,124 : x
  2. Step 2: Convert to fraction form
    1,253,668/1,730,061.84 = 717,124/x
  3. Step 3: Cross multiply
    1,253,668x = 1,730,061.84 × 717,124
  4. Step 4: Simplify right side
    1,253,668x = 1,240,668,866,948.16
  5. Step 5: Solve for x
    x = 1,240,668,866,948.16/1,253,668
  6. Step 6: Final answer
    x = 989,631.12

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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.