Home / 677,931.54-1,016,498.61-257,236.98

Finding the Fourth Proportional to 677,931.54, 1,016,498.61 and 257,236.98

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Solution

The fourth proportional to 677,931.54, 1,016,498.61 and 257,236.98 is: 385,704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,931.54 : 1,016,498.61 = 257,236.98 : x
  2. Step 2: Convert to fraction form
    677,931.54/1,016,498.61 = 257,236.98/x
  3. Step 3: Cross multiply
    677,931.54x = 1,016,498.61 × 257,236.98
  4. Step 4: Simplify right side
    677,931.54x = 261,481,032,610.60
  5. Step 5: Solve for x
    x = 261,481,032,610.60/677,931.54
  6. Step 6: Final answer
    x = 385,704.19

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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.