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Finding the Fourth Proportional to 541,253.40, 810,324.90 and 485,266.20

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Solution

The fourth proportional to 541,253.40, 810,324.90 and 485,266.20 is: 726,504.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,253.40 : 810,324.90 = 485,266.20 : x
  2. Step 2: Convert to fraction form
    541,253.40/810,324.90 = 485,266.20/x
  3. Step 3: Cross multiply
    541,253.40x = 810,324.90 × 485,266.20
  4. Step 4: Simplify right side
    541,253.40x = 393,223,284,988.38
  5. Step 5: Solve for x
    x = 393,223,284,988.38/541,253.40
  6. Step 6: Final answer
    x = 726,504.97

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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.