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Finding the Fourth Proportional to 541,401.20, 810,352.20 and 422,428.40

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Solution

The fourth proportional to 541,401.20, 810,352.20 and 422,428.40 is: 632,277.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,401.20 : 810,352.20 = 422,428.40 : x
  2. Step 2: Convert to fraction form
    541,401.20/810,352.20 = 422,428.40/x
  3. Step 3: Cross multiply
    541,401.20x = 810,352.20 × 422,428.40
  4. Step 4: Simplify right side
    541,401.20x = 342,315,783,282.48
  5. Step 5: Solve for x
    x = 342,315,783,282.48/541,401.20
  6. Step 6: Final answer
    x = 632,277.47

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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.