Home / 677,965.80-1,016,948.70-412,247.40

Finding the Fourth Proportional to 677,965.80, 1,016,948.70 and 412,247.40

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Solution

The fourth proportional to 677,965.80, 1,016,948.70 and 412,247.40 is: 618,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,965.80 : 1,016,948.70 = 412,247.40 : x
  2. Step 2: Convert to fraction form
    677,965.80/1,016,948.70 = 412,247.40/x
  3. Step 3: Cross multiply
    677,965.80x = 1,016,948.70 × 412,247.40
  4. Step 4: Simplify right side
    677,965.80x = 419,234,457,508.38
  5. Step 5: Solve for x
    x = 419,234,457,508.38/677,965.80
  6. Step 6: Final answer
    x = 618,371.10

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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.