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Finding the Fourth Proportional to 543,855.01, 750,310.54 and 400,954.81

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Solution

The fourth proportional to 543,855.01, 750,310.54 and 400,954.81 is: 553,163.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,855.01 : 750,310.54 = 400,954.81 : x
  2. Step 2: Convert to fraction form
    543,855.01/750,310.54 = 400,954.81/x
  3. Step 3: Cross multiply
    543,855.01x = 750,310.54 × 400,954.81
  4. Step 4: Simplify right side
    543,855.01x = 300,840,620,006.70
  5. Step 5: Solve for x
    x = 300,840,620,006.70/543,855.01
  6. Step 6: Final answer
    x = 553,163.28

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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.