Home / 677,920.40-1,016,686.20-204,491.60

Finding the Fourth Proportional to 677,920.40, 1,016,686.20 and 204,491.60

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Solution

The fourth proportional to 677,920.40, 1,016,686.20 and 204,491.60 is: 306,678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,920.40 : 1,016,686.20 = 204,491.60 : x
  2. Step 2: Convert to fraction form
    677,920.40/1,016,686.20 = 204,491.60/x
  3. Step 3: Cross multiply
    677,920.40x = 1,016,686.20 × 204,491.60
  4. Step 4: Simplify right side
    677,920.40x = 207,903,787,735.92
  5. Step 5: Solve for x
    x = 207,903,787,735.92/677,920.40
  6. Step 6: Final answer
    x = 306,678.76

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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.