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Finding the Fourth Proportional to 541,404.70, 810,357.45 and 422,431.90

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Solution

The fourth proportional to 541,404.70, 810,357.45 and 422,431.90 is: 632,282.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,404.70 : 810,357.45 = 422,431.90 : x
  2. Step 2: Convert to fraction form
    541,404.70/810,357.45 = 422,431.90/x
  3. Step 3: Cross multiply
    541,404.70x = 810,357.45 × 422,431.90
  4. Step 4: Simplify right side
    541,404.70x = 342,320,837,282.66
  5. Step 5: Solve for x
    x = 342,320,837,282.66/541,404.70
  6. Step 6: Final answer
    x = 632,282.72

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1.5x scale

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.