Home / 1,971,761.28-2,721,156.60-1,112,007.84

Finding the Fourth Proportional to 1,971,761.28, 2,721,156.60 and 1,112,007.84

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Solution

The fourth proportional to 1,971,761.28, 2,721,156.60 and 1,112,007.84 is: 1,534,641.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,761.28 : 2,721,156.60 = 1,112,007.84 : x
  2. Step 2: Convert to fraction form
    1,971,761.28/2,721,156.60 = 1,112,007.84/x
  3. Step 3: Cross multiply
    1,971,761.28x = 2,721,156.60 × 1,112,007.84
  4. Step 4: Simplify right side
    1,971,761.28x = 3,025,947,473,067.74
  5. Step 5: Solve for x
    x = 3,025,947,473,067.74/1,971,761.28
  6. Step 6: Final answer
    x = 1,534,641.90

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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.