Home / 861,350.70-1,292,301.45-262,425.90

Finding the Fourth Proportional to 861,350.70, 1,292,301.45 and 262,425.90

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Solution

The fourth proportional to 861,350.70, 1,292,301.45 and 262,425.90 is: 393,722.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,350.70 : 1,292,301.45 = 262,425.90 : x
  2. Step 2: Convert to fraction form
    861,350.70/1,292,301.45 = 262,425.90/x
  3. Step 3: Cross multiply
    861,350.70x = 1,292,301.45 × 262,425.90
  4. Step 4: Simplify right side
    861,350.70x = 339,133,371,087.56
  5. Step 5: Solve for x
    x = 339,133,371,087.56/861,350.70
  6. Step 6: Final answer
    x = 393,722.76

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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.