Home / 1,253,131.74-1,730,104.74-861,339.19

Finding the Fourth Proportional to 1,253,131.74, 1,730,104.74 and 861,339.19

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Solution

The fourth proportional to 1,253,131.74, 1,730,104.74 and 861,339.19 is: 1,189,186.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,131.74 : 1,730,104.74 = 861,339.19 : x
  2. Step 2: Convert to fraction form
    1,253,131.74/1,730,104.74 = 861,339.19/x
  3. Step 3: Cross multiply
    1,253,131.74x = 1,730,104.74 × 861,339.19
  4. Step 4: Simplify right side
    1,253,131.74x = 1,490,207,015,366.76
  5. Step 5: Solve for x
    x = 1,490,207,015,366.76/1,253,131.74
  6. Step 6: Final answer
    x = 1,189,186.23

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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.