Home / 1,257,112.56-1,734,781.92-684,140.40

Finding the Fourth Proportional to 1,257,112.56, 1,734,781.92 and 684,140.40

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Solution

The fourth proportional to 1,257,112.56, 1,734,781.92 and 684,140.40 is: 944,095.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,112.56 : 1,734,781.92 = 684,140.40 : x
  2. Step 2: Convert to fraction form
    1,257,112.56/1,734,781.92 = 684,140.40/x
  3. Step 3: Cross multiply
    1,257,112.56x = 1,734,781.92 × 684,140.40
  4. Step 4: Simplify right side
    1,257,112.56x = 1,186,834,396,661.57
  5. Step 5: Solve for x
    x = 1,186,834,396,661.57/1,257,112.56
  6. Step 6: Final answer
    x = 944,095.57

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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.