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Finding the Fourth Proportional to 677,959.41, 935,581.35 and 372,040.89

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Solution

The fourth proportional to 677,959.41, 935,581.35 and 372,040.89 is: 513,414.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,959.41 : 935,581.35 = 372,040.89 : x
  2. Step 2: Convert to fraction form
    677,959.41/935,581.35 = 372,040.89/x
  3. Step 3: Cross multiply
    677,959.41x = 935,581.35 × 372,040.89
  4. Step 4: Simplify right side
    677,959.41x = 348,074,518,121.40
  5. Step 5: Solve for x
    x = 348,074,518,121.40/677,959.41
  6. Step 6: Final answer
    x = 513,414.98

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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.