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Finding the Fourth Proportional to 677,925.21, 935,534.22 and 372,006.72

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Solution

The fourth proportional to 677,925.21, 935,534.22 and 372,006.72 is: 513,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,925.21 : 935,534.22 = 372,006.72 : x
  2. Step 2: Convert to fraction form
    677,925.21/935,534.22 = 372,006.72/x
  3. Step 3: Cross multiply
    677,925.21x = 935,534.22 × 372,006.72
  4. Step 4: Simplify right side
    677,925.21x = 348,025,016,629.96
  5. Step 5: Solve for x
    x = 348,025,016,629.96/677,925.21
  6. Step 6: Final answer
    x = 513,367.86

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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.