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Finding the Fourth Proportional to 690,301.49, 952,606.97 and 380,198.12

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Solution

The fourth proportional to 690,301.49, 952,606.97 and 380,198.12 is: 524,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,301.49 : 952,606.97 = 380,198.12 : x
  2. Step 2: Convert to fraction form
    690,301.49/952,606.97 = 380,198.12/x
  3. Step 3: Cross multiply
    690,301.49x = 952,606.97 × 380,198.12
  4. Step 4: Simplify right side
    690,301.49x = 362,179,372,428.87
  5. Step 5: Solve for x
    x = 362,179,372,428.87/690,301.49
  6. Step 6: Final answer
    x = 524,668.40

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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.