Home / 769,789.36-1,062,266.46-425,605.38

Finding the Fourth Proportional to 769,789.36, 1,062,266.46 and 425,605.38

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Solution

The fourth proportional to 769,789.36, 1,062,266.46 and 425,605.38 is: 587,311.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,789.36 : 1,062,266.46 = 425,605.38 : x
  2. Step 2: Convert to fraction form
    769,789.36/1,062,266.46 = 425,605.38/x
  3. Step 3: Cross multiply
    769,789.36x = 1,062,266.46 × 425,605.38
  4. Step 4: Simplify right side
    769,789.36x = 452,106,315,058.22
  5. Step 5: Solve for x
    x = 452,106,315,058.22/769,789.36
  6. Step 6: Final answer
    x = 587,311.72

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Double scale
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1.5x scale

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.