Home / 677,702.40-1,016,956.80-257,020.80

Finding the Fourth Proportional to 677,702.40, 1,016,956.80 and 257,020.80

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Solution

The fourth proportional to 677,702.40, 1,016,956.80 and 257,020.80 is: 385,684.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,702.40 : 1,016,956.80 = 257,020.80 : x
  2. Step 2: Convert to fraction form
    677,702.40/1,016,956.80 = 257,020.80/x
  3. Step 3: Cross multiply
    677,702.40x = 1,016,956.80 × 257,020.80
  4. Step 4: Simplify right side
    677,702.40x = 261,379,050,301.44
  5. Step 5: Solve for x
    x = 261,379,050,301.44/677,702.40
  6. Step 6: Final answer
    x = 385,684.11

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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.