Home / 691,961.00-954,743.49-420,022.13

Finding the Fourth Proportional to 691,961.00, 954,743.49 and 420,022.13

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Solution

The fourth proportional to 691,961.00, 954,743.49 and 420,022.13 is: 579,531.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,961.00 : 954,743.49 = 420,022.13 : x
  2. Step 2: Convert to fraction form
    691,961.00/954,743.49 = 420,022.13/x
  3. Step 3: Cross multiply
    691,961.00x = 954,743.49 × 420,022.13
  4. Step 4: Simplify right side
    691,961.00x = 401,013,389,499.72
  5. Step 5: Solve for x
    x = 401,013,389,499.72/691,961.00
  6. Step 6: Final answer
    x = 579,531.78

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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.