Home / 427,377.20-589,785.72-236,385.68

Finding the Fourth Proportional to 427,377.20, 589,785.72 and 236,385.68

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Solution

The fourth proportional to 427,377.20, 589,785.72 and 236,385.68 is: 326,215.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,377.20 : 589,785.72 = 236,385.68 : x
  2. Step 2: Convert to fraction form
    427,377.20/589,785.72 = 236,385.68/x
  3. Step 3: Cross multiply
    427,377.20x = 589,785.72 × 236,385.68
  4. Step 4: Simplify right side
    427,377.20x = 139,416,898,476.49
  5. Step 5: Solve for x
    x = 139,416,898,476.49/427,377.20
  6. Step 6: Final answer
    x = 326,215.11

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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.