Home / 1,287,851.87-1,777,146.68-714,846.94

Finding the Fourth Proportional to 1,287,851.87, 1,777,146.68 and 714,846.94

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Solution

The fourth proportional to 1,287,851.87, 1,777,146.68 and 714,846.94 is: 986,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,851.87 : 1,777,146.68 = 714,846.94 : x
  2. Step 2: Convert to fraction form
    1,287,851.87/1,777,146.68 = 714,846.94/x
  3. Step 3: Cross multiply
    1,287,851.87x = 1,777,146.68 × 714,846.94
  4. Step 4: Simplify right side
    1,287,851.87x = 1,270,387,863,473.41
  5. Step 5: Solve for x
    x = 1,270,387,863,473.41/1,287,851.87
  6. Step 6: Final answer
    x = 986,439.43

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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.