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Finding the Fourth Proportional to 887,749.40, 1,331,450.34 and 738,945.88

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Solution

The fourth proportional to 887,749.40, 1,331,450.34 and 738,945.88 is: 1,108,274.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,749.40 : 1,331,450.34 = 738,945.88 : x
  2. Step 2: Convert to fraction form
    887,749.40/1,331,450.34 = 738,945.88/x
  3. Step 3: Cross multiply
    887,749.40x = 1,331,450.34 × 738,945.88
  4. Step 4: Simplify right side
    887,749.40x = 983,869,743,167.60
  5. Step 5: Solve for x
    x = 983,869,743,167.60/887,749.40
  6. Step 6: Final answer
    x = 1,108,274.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.