Home / 428,742.40-591,625.74-237,755.20

Finding the Fourth Proportional to 428,742.40, 591,625.74 and 237,755.20

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Solution

The fourth proportional to 428,742.40, 591,625.74 and 237,755.20 is: 328,080.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,742.40 : 591,625.74 = 237,755.20 : x
  2. Step 2: Convert to fraction form
    428,742.40/591,625.74 = 237,755.20/x
  3. Step 3: Cross multiply
    428,742.40x = 591,625.74 × 237,755.20
  4. Step 4: Simplify right side
    428,742.40x = 140,662,096,138.85
  5. Step 5: Solve for x
    x = 140,662,096,138.85/428,742.40
  6. Step 6: Final answer
    x = 328,080.68

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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.