Home / 714,520.20-1,072,107.72-309,836.52

Finding the Fourth Proportional to 714,520.20, 1,072,107.72 and 309,836.52

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Solution

The fourth proportional to 714,520.20, 1,072,107.72 and 309,836.52 is: 464,896.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,520.20 : 1,072,107.72 = 309,836.52 : x
  2. Step 2: Convert to fraction form
    714,520.20/1,072,107.72 = 309,836.52/x
  3. Step 3: Cross multiply
    714,520.20x = 1,072,107.72 × 309,836.52
  4. Step 4: Simplify right side
    714,520.20x = 332,178,125,029.93
  5. Step 5: Solve for x
    x = 332,178,125,029.93/714,520.20
  6. Step 6: Final answer
    x = 464,896.76

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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.