Home / 1,419,656-2,128,434.24-858,565.76

Finding the Fourth Proportional to 1,419,656, 2,128,434.24 and 858,565.76

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Solution

The fourth proportional to 1,419,656, 2,128,434.24 and 858,565.76 is: 1,287,213.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,656 : 2,128,434.24 = 858,565.76 : x
  2. Step 2: Convert to fraction form
    1,419,656/2,128,434.24 = 858,565.76/x
  3. Step 3: Cross multiply
    1,419,656x = 2,128,434.24 × 858,565.76
  4. Step 4: Simplify right side
    1,419,656x = 1,827,400,760,875.62
  5. Step 5: Solve for x
    x = 1,827,400,760,875.62/1,419,656
  6. Step 6: Final answer
    x = 1,287,213.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.