Home / 678,946.92-1,016,868.96-324,209.40

Finding the Fourth Proportional to 678,946.92, 1,016,868.96 and 324,209.40

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Solution

The fourth proportional to 678,946.92, 1,016,868.96 and 324,209.40 is: 485,573.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,946.92 : 1,016,868.96 = 324,209.40 : x
  2. Step 2: Convert to fraction form
    678,946.92/1,016,868.96 = 324,209.40/x
  3. Step 3: Cross multiply
    678,946.92x = 1,016,868.96 × 324,209.40
  4. Step 4: Simplify right side
    678,946.92x = 329,678,475,400.22
  5. Step 5: Solve for x
    x = 329,678,475,400.22/678,946.92
  6. Step 6: Final answer
    x = 485,573.27

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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.