Home / 428,768.20-591,670.74-237,763.72

Finding the Fourth Proportional to 428,768.20, 591,670.74 and 237,763.72

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Solution

The fourth proportional to 428,768.20, 591,670.74 and 237,763.72 is: 328,097.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,768.20 : 591,670.74 = 237,763.72 : x
  2. Step 2: Convert to fraction form
    428,768.20/591,670.74 = 237,763.72/x
  3. Step 3: Cross multiply
    428,768.20x = 591,670.74 × 237,763.72
  4. Step 4: Simplify right side
    428,768.20x = 140,677,836,157.55
  5. Step 5: Solve for x
    x = 140,677,836,157.55/428,768.20
  6. Step 6: Final answer
    x = 328,097.64

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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.