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Finding the Fourth Proportional to 551,154.80, 825,857.40 and 363,947.60

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Solution

The fourth proportional to 551,154.80, 825,857.40 and 363,947.60 is: 545,343.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,154.80 : 825,857.40 = 363,947.60 : x
  2. Step 2: Convert to fraction form
    551,154.80/825,857.40 = 363,947.60/x
  3. Step 3: Cross multiply
    551,154.80x = 825,857.40 × 363,947.60
  4. Step 4: Simplify right side
    551,154.80x = 300,568,818,672.24
  5. Step 5: Solve for x
    x = 300,568,818,672.24/551,154.80
  6. Step 6: Final answer
    x = 545,343.74

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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.