Home / 677,942.28-935,557.78-372,023.78

Finding the Fourth Proportional to 677,942.28, 935,557.78 and 372,023.78

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Solution

The fourth proportional to 677,942.28, 935,557.78 and 372,023.78 is: 513,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,942.28 : 935,557.78 = 372,023.78 : x
  2. Step 2: Convert to fraction form
    677,942.28/935,557.78 = 372,023.78/x
  3. Step 3: Cross multiply
    677,942.28x = 935,557.78 × 372,023.78
  4. Step 4: Simplify right side
    677,942.28x = 348,049,735,186.10
  5. Step 5: Solve for x
    x = 348,049,735,186.10/677,942.28
  6. Step 6: Final answer
    x = 513,391.40

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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.