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Finding the Fourth Proportional to 428,735.01, 591,677.97 and 237,744.30

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Solution

The fourth proportional to 428,735.01, 591,677.97 and 237,744.30 is: 328,100.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,735.01 : 591,677.97 = 237,744.30 : x
  2. Step 2: Convert to fraction form
    428,735.01/591,677.97 = 237,744.30/x
  3. Step 3: Cross multiply
    428,735.01x = 591,677.97 × 237,744.30
  4. Step 4: Simplify right side
    428,735.01x = 140,668,064,803.07
  5. Step 5: Solve for x
    x = 140,668,064,803.07/428,735.01
  6. Step 6: Final answer
    x = 328,100.25

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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.