Home / 480,815.70-720,586.48-255,691.38

Finding the Fourth Proportional to 480,815.70, 720,586.48 and 255,691.38

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Solution

The fourth proportional to 480,815.70, 720,586.48 and 255,691.38 is: 383,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,815.70 : 720,586.48 = 255,691.38 : x
  2. Step 2: Convert to fraction form
    480,815.70/720,586.48 = 255,691.38/x
  3. Step 3: Cross multiply
    480,815.70x = 720,586.48 × 255,691.38
  4. Step 4: Simplify right side
    480,815.70x = 184,247,754,022.94
  5. Step 5: Solve for x
    x = 184,247,754,022.94/480,815.70
  6. Step 6: Final answer
    x = 383,198.29

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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.