Home / 1,287,833.62-1,777,121.50-714,828.69

Finding the Fourth Proportional to 1,287,833.62, 1,777,121.50 and 714,828.69

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Solution

The fourth proportional to 1,287,833.62, 1,777,121.50 and 714,828.69 is: 986,414.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,833.62 : 1,777,121.50 = 714,828.69 : x
  2. Step 2: Convert to fraction form
    1,287,833.62/1,777,121.50 = 714,828.69/x
  3. Step 3: Cross multiply
    1,287,833.62x = 1,777,121.50 × 714,828.69
  4. Step 4: Simplify right side
    1,287,833.62x = 1,270,337,433,815.84
  5. Step 5: Solve for x
    x = 1,270,337,433,815.84/1,287,833.62
  6. Step 6: Final answer
    x = 986,414.25

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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.