Home / 1,287,851.13-1,777,145.64-714,846.18

Finding the Fourth Proportional to 1,287,851.13, 1,777,145.64 and 714,846.18

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Solution

The fourth proportional to 1,287,851.13, 1,777,145.64 and 714,846.18 is: 986,438.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,851.13 : 1,777,145.64 = 714,846.18 : x
  2. Step 2: Convert to fraction form
    1,287,851.13/1,777,145.64 = 714,846.18/x
  3. Step 3: Cross multiply
    1,287,851.13x = 1,777,145.64 × 714,846.18
  4. Step 4: Simplify right side
    1,287,851.13x = 1,270,385,772,057.66
  5. Step 5: Solve for x
    x = 1,270,385,772,057.66/1,287,851.13
  6. Step 6: Final answer
    x = 986,438.37

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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.