Home / 427,821.30-590,400.39-234,225.78

Finding the Fourth Proportional to 427,821.30, 590,400.39 and 234,225.78

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Solution

The fourth proportional to 427,821.30, 590,400.39 and 234,225.78 is: 323,235.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,821.30 : 590,400.39 = 234,225.78 : x
  2. Step 2: Convert to fraction form
    427,821.30/590,400.39 = 234,225.78/x
  3. Step 3: Cross multiply
    427,821.30x = 590,400.39 × 234,225.78
  4. Step 4: Simplify right side
    427,821.30x = 138,286,995,505.90
  5. Step 5: Solve for x
    x = 138,286,995,505.90/427,821.30
  6. Step 6: Final answer
    x = 323,235.41

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1.5x scale

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.