Home / 428,416.47-591,234.66-237,429.88

Finding the Fourth Proportional to 428,416.47, 591,234.66 and 237,429.88

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Solution

The fourth proportional to 428,416.47, 591,234.66 and 237,429.88 is: 327,664.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,416.47 : 591,234.66 = 237,429.88 : x
  2. Step 2: Convert to fraction form
    428,416.47/591,234.66 = 237,429.88/x
  3. Step 3: Cross multiply
    428,416.47x = 591,234.66 × 237,429.88
  4. Step 4: Simplify right side
    428,416.47x = 140,376,772,897.55
  5. Step 5: Solve for x
    x = 140,376,772,897.55/428,416.47
  6. Step 6: Final answer
    x = 327,664.28

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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.