Home / 1,287,889.85-1,777,198.96-714,884.92

Finding the Fourth Proportional to 1,287,889.85, 1,777,198.96 and 714,884.92

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Solution

The fourth proportional to 1,287,889.85, 1,777,198.96 and 714,884.92 is: 986,491.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,889.85 : 1,777,198.96 = 714,884.92 : x
  2. Step 2: Convert to fraction form
    1,287,889.85/1,777,198.96 = 714,884.92/x
  3. Step 3: Cross multiply
    1,287,889.85x = 1,777,198.96 × 714,884.92
  4. Step 4: Simplify right side
    1,287,889.85x = 1,270,492,732,794.29
  5. Step 5: Solve for x
    x = 1,270,492,732,794.29/1,287,889.85
  6. Step 6: Final answer
    x = 986,491.76

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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.