Home / 1,257,178.44-1,734,943.12-684,255.72

Finding the Fourth Proportional to 1,257,178.44, 1,734,943.12 and 684,255.72

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Solution

The fourth proportional to 1,257,178.44, 1,734,943.12 and 684,255.72 is: 944,292.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,178.44 : 1,734,943.12 = 684,255.72 : x
  2. Step 2: Convert to fraction form
    1,257,178.44/1,734,943.12 = 684,255.72/x
  3. Step 3: Cross multiply
    1,257,178.44x = 1,734,943.12 × 684,255.72
  4. Step 4: Simplify right side
    1,257,178.44x = 1,187,144,753,734.65
  5. Step 5: Solve for x
    x = 1,187,144,753,734.65/1,257,178.44
  6. Step 6: Final answer
    x = 944,292.96

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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.