Home / 1,397,818.53-1,929,148.37-777,685.06

Finding the Fourth Proportional to 1,397,818.53, 1,929,148.37 and 777,685.06

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Solution

The fourth proportional to 1,397,818.53, 1,929,148.37 and 777,685.06 is: 1,073,293.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,818.53 : 1,929,148.37 = 777,685.06 : x
  2. Step 2: Convert to fraction form
    1,397,818.53/1,929,148.37 = 777,685.06/x
  3. Step 3: Cross multiply
    1,397,818.53x = 1,929,148.37 × 777,685.06
  4. Step 4: Simplify right side
    1,397,818.53x = 1,500,269,862,993.69
  5. Step 5: Solve for x
    x = 1,500,269,862,993.69/1,397,818.53
  6. Step 6: Final answer
    x = 1,073,293.73

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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.