Home / 1,287,894.35-1,777,205.17-714,889.42

Finding the Fourth Proportional to 1,287,894.35, 1,777,205.17 and 714,889.42

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Solution

The fourth proportional to 1,287,894.35, 1,777,205.17 and 714,889.42 is: 986,497.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,894.35 : 1,777,205.17 = 714,889.42 : x
  2. Step 2: Convert to fraction form
    1,287,894.35/1,777,205.17 = 714,889.42/x
  3. Step 3: Cross multiply
    1,287,894.35x = 1,777,205.17 × 714,889.42
  4. Step 4: Simplify right side
    1,287,894.35x = 1,270,505,169,652.90
  5. Step 5: Solve for x
    x = 1,270,505,169,652.90/1,287,894.35
  6. Step 6: Final answer
    x = 986,497.97

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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.