Home / 451,540.47-677,423.66-318,680.22

Finding the Fourth Proportional to 451,540.47, 677,423.66 and 318,680.22

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Solution

The fourth proportional to 451,540.47, 677,423.66 and 318,680.22 is: 478,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,540.47 : 677,423.66 = 318,680.22 : x
  2. Step 2: Convert to fraction form
    451,540.47/677,423.66 = 318,680.22/x
  3. Step 3: Cross multiply
    451,540.47x = 677,423.66 × 318,680.22
  4. Step 4: Simplify right side
    451,540.47x = 215,881,517,465.79
  5. Step 5: Solve for x
    x = 215,881,517,465.79/451,540.47
  6. Step 6: Final answer
    x = 478,100.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.