Home / 1,338,739.47-1,847,274.60-787,480.20

Finding the Fourth Proportional to 1,338,739.47, 1,847,274.60 and 787,480.20

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Solution

The fourth proportional to 1,338,739.47, 1,847,274.60 and 787,480.20 is: 1,086,613.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,739.47 : 1,847,274.60 = 787,480.20 : x
  2. Step 2: Convert to fraction form
    1,338,739.47/1,847,274.60 = 787,480.20/x
  3. Step 3: Cross multiply
    1,338,739.47x = 1,847,274.60 × 787,480.20
  4. Step 4: Simplify right side
    1,338,739.47x = 1,454,692,171,462.92
  5. Step 5: Solve for x
    x = 1,454,692,171,462.92/1,338,739.47
  6. Step 6: Final answer
    x = 1,086,613.34

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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.