Home / 729,969.20-1,094,435.40-280,516.40

Finding the Fourth Proportional to 729,969.20, 1,094,435.40 and 280,516.40

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Solution

The fourth proportional to 729,969.20, 1,094,435.40 and 280,516.40 is: 420,575.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,969.20 : 1,094,435.40 = 280,516.40 : x
  2. Step 2: Convert to fraction form
    729,969.20/1,094,435.40 = 280,516.40/x
  3. Step 3: Cross multiply
    729,969.20x = 1,094,435.40 × 280,516.40
  4. Step 4: Simplify right side
    729,969.20x = 307,007,078,440.56
  5. Step 5: Solve for x
    x = 307,007,078,440.56/729,969.20
  6. Step 6: Final answer
    x = 420,575.39

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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.