Home / 428,372.04-591,146.34-234,778.26

Finding the Fourth Proportional to 428,372.04, 591,146.34 and 234,778.26

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Solution

The fourth proportional to 428,372.04, 591,146.34 and 234,778.26 is: 323,990.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,372.04 : 591,146.34 = 234,778.26 : x
  2. Step 2: Convert to fraction form
    428,372.04/591,146.34 = 234,778.26/x
  3. Step 3: Cross multiply
    428,372.04x = 591,146.34 × 234,778.26
  4. Step 4: Simplify right side
    428,372.04x = 138,788,309,110.57
  5. Step 5: Solve for x
    x = 138,788,309,110.57/428,372.04
  6. Step 6: Final answer
    x = 323,990.12

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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.