Home / 693,945.40-1,040,918.10-426,839.80

Finding the Fourth Proportional to 693,945.40, 1,040,918.10 and 426,839.80

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Solution

The fourth proportional to 693,945.40, 1,040,918.10 and 426,839.80 is: 640,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,945.40 : 1,040,918.10 = 426,839.80 : x
  2. Step 2: Convert to fraction form
    693,945.40/1,040,918.10 = 426,839.80/x
  3. Step 3: Cross multiply
    693,945.40x = 1,040,918.10 × 426,839.80
  4. Step 4: Simplify right side
    693,945.40x = 444,305,273,620.38
  5. Step 5: Solve for x
    x = 444,305,273,620.38/693,945.40
  6. Step 6: Final answer
    x = 640,259.70

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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.