Home / 690,760.04-1,036,136.22-217,480.04

Finding the Fourth Proportional to 690,760.04, 1,036,136.22 and 217,480.04

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Solution

The fourth proportional to 690,760.04, 1,036,136.22 and 217,480.04 is: 326,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,760.04 : 1,036,136.22 = 217,480.04 : x
  2. Step 2: Convert to fraction form
    690,760.04/1,036,136.22 = 217,480.04/x
  3. Step 3: Cross multiply
    690,760.04x = 1,036,136.22 × 217,480.04
  4. Step 4: Simplify right side
    690,760.04x = 225,338,946,571.05
  5. Step 5: Solve for x
    x = 225,338,946,571.05/690,760.04
  6. Step 6: Final answer
    x = 326,218.85

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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.