Home / 1,257,100.11-1,734,764.89-684,127.98

Finding the Fourth Proportional to 1,257,100.11, 1,734,764.89 and 684,127.98

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Solution

The fourth proportional to 1,257,100.11, 1,734,764.89 and 684,127.98 is: 944,078.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,100.11 : 1,734,764.89 = 684,127.98 : x
  2. Step 2: Convert to fraction form
    1,257,100.11/1,734,764.89 = 684,127.98/x
  3. Step 3: Cross multiply
    1,257,100.11x = 1,734,764.89 × 684,127.98
  4. Step 4: Simplify right side
    1,257,100.11x = 1,186,801,199,970.62
  5. Step 5: Solve for x
    x = 1,186,801,199,970.62/1,257,100.11
  6. Step 6: Final answer
    x = 944,078.51

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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.