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Finding the Fourth Proportional to 426,717.40, 588,861.54 and 235,729

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Solution

The fourth proportional to 426,717.40, 588,861.54 and 235,729 is: 325,301.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,717.40 : 588,861.54 = 235,729 : x
  2. Step 2: Convert to fraction form
    426,717.40/588,861.54 = 235,729/x
  3. Step 3: Cross multiply
    426,717.40x = 588,861.54 × 235,729
  4. Step 4: Simplify right side
    426,717.40x = 138,811,741,962.66
  5. Step 5: Solve for x
    x = 138,811,741,962.66/426,717.40
  6. Step 6: Final answer
    x = 325,301.34

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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.