Home / 775,478.28-1,163,217.83-243,040.78

Finding the Fourth Proportional to 775,478.28, 1,163,217.83 and 243,040.78

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Solution

The fourth proportional to 775,478.28, 1,163,217.83 and 243,040.78 is: 364,561.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,478.28 : 1,163,217.83 = 243,040.78 : x
  2. Step 2: Convert to fraction form
    775,478.28/1,163,217.83 = 243,040.78/x
  3. Step 3: Cross multiply
    775,478.28x = 1,163,217.83 × 243,040.78
  4. Step 4: Simplify right side
    775,478.28x = 282,709,368,713.11
  5. Step 5: Solve for x
    x = 282,709,368,713.11/775,478.28
  6. Step 6: Final answer
    x = 364,561.30

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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.