Home / 589,448.12-813,438.41-321,176.12

Finding the Fourth Proportional to 589,448.12, 813,438.41 and 321,176.12

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Solution

The fourth proportional to 589,448.12, 813,438.41 and 321,176.12 is: 443,223.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,448.12 : 813,438.41 = 321,176.12 : x
  2. Step 2: Convert to fraction form
    589,448.12/813,438.41 = 321,176.12/x
  3. Step 3: Cross multiply
    589,448.12x = 813,438.41 × 321,176.12
  4. Step 4: Simplify right side
    589,448.12x = 261,256,986,709.70
  5. Step 5: Solve for x
    x = 261,256,986,709.70/589,448.12
  6. Step 6: Final answer
    x = 443,223.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.