Home / 1,398,892.41-1,930,542.57-825,920.28

Finding the Fourth Proportional to 1,398,892.41, 1,930,542.57 and 825,920.28

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Solution

The fourth proportional to 1,398,892.41, 1,930,542.57 and 825,920.28 is: 1,139,811.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,892.41 : 1,930,542.57 = 825,920.28 : x
  2. Step 2: Convert to fraction form
    1,398,892.41/1,930,542.57 = 825,920.28/x
  3. Step 3: Cross multiply
    1,398,892.41x = 1,930,542.57 × 825,920.28
  4. Step 4: Simplify right side
    1,398,892.41x = 1,594,474,259,966.32
  5. Step 5: Solve for x
    x = 1,594,474,259,966.32/1,398,892.41
  6. Step 6: Final answer
    x = 1,139,811.93

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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.