Home / 1,227,756.78-1,694,565.63-825,115.50

Finding the Fourth Proportional to 1,227,756.78, 1,694,565.63 and 825,115.50

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Solution

The fourth proportional to 1,227,756.78, 1,694,565.63 and 825,115.50 is: 1,138,834.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,756.78 : 1,694,565.63 = 825,115.50 : x
  2. Step 2: Convert to fraction form
    1,227,756.78/1,694,565.63 = 825,115.50/x
  3. Step 3: Cross multiply
    1,227,756.78x = 1,694,565.63 × 825,115.50
  4. Step 4: Simplify right side
    1,227,756.78x = 1,398,212,367,080.26
  5. Step 5: Solve for x
    x = 1,398,212,367,080.26/1,227,756.78
  6. Step 6: Final answer
    x = 1,138,834.98

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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.