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Finding the Fourth Proportional to 943,673, 1,302,249.30 and 513,960.68

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Solution

The fourth proportional to 943,673, 1,302,249.30 and 513,960.68 is: 709,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,673 : 1,302,249.30 = 513,960.68 : x
  2. Step 2: Convert to fraction form
    943,673/1,302,249.30 = 513,960.68/x
  3. Step 3: Cross multiply
    943,673x = 1,302,249.30 × 513,960.68
  4. Step 4: Simplify right side
    943,673x = 669,304,935,757.52
  5. Step 5: Solve for x
    x = 669,304,935,757.52/943,673
  6. Step 6: Final answer
    x = 709,255.15

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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.