Home / 2,486,540.32-3,431,420.56-1,398,812.64

Finding the Fourth Proportional to 2,486,540.32, 3,431,420.56 and 1,398,812.64

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Solution

The fourth proportional to 2,486,540.32, 3,431,420.56 and 1,398,812.64 is: 1,930,358.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486,540.32 : 3,431,420.56 = 1,398,812.64 : x
  2. Step 2: Convert to fraction form
    2,486,540.32/3,431,420.56 = 1,398,812.64/x
  3. Step 3: Cross multiply
    2,486,540.32x = 3,431,420.56 × 1,398,812.64
  4. Step 4: Simplify right side
    2,486,540.32x = 4,799,914,452,483.88
  5. Step 5: Solve for x
    x = 4,799,914,452,483.88/2,486,540.32
  6. Step 6: Final answer
    x = 1,930,358.58

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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.