Home / 677,918.40-1,016,683.20-204,489.60

Finding the Fourth Proportional to 677,918.40, 1,016,683.20 and 204,489.60

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Solution

The fourth proportional to 677,918.40, 1,016,683.20 and 204,489.60 is: 306,675.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,918.40 : 1,016,683.20 = 204,489.60 : x
  2. Step 2: Convert to fraction form
    677,918.40/1,016,683.20 = 204,489.60/x
  3. Step 3: Cross multiply
    677,918.40x = 1,016,683.20 × 204,489.60
  4. Step 4: Simplify right side
    677,918.40x = 207,901,140,894.72
  5. Step 5: Solve for x
    x = 207,901,140,894.72/677,918.40
  6. Step 6: Final answer
    x = 306,675.76

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1.5x scale

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.