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Finding the Fourth Proportional to 428,693.40, 591,595.92 and 237,701.88

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Solution

The fourth proportional to 428,693.40, 591,595.92 and 237,701.88 is: 328,028.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,693.40 : 591,595.92 = 237,701.88 : x
  2. Step 2: Convert to fraction form
    428,693.40/591,595.92 = 237,701.88/x
  3. Step 3: Cross multiply
    428,693.40x = 591,595.92 × 237,701.88
  4. Step 4: Simplify right side
    428,693.40x = 140,623,462,384.33
  5. Step 5: Solve for x
    x = 140,623,462,384.33/428,693.40
  6. Step 6: Final answer
    x = 328,028.06

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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.