Home / 855,288.78-1,281,708.45-480,524.46

Finding the Fourth Proportional to 855,288.78, 1,281,708.45 and 480,524.46

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Solution

The fourth proportional to 855,288.78, 1,281,708.45 and 480,524.46 is: 720,098.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,288.78 : 1,281,708.45 = 480,524.46 : x
  2. Step 2: Convert to fraction form
    855,288.78/1,281,708.45 = 480,524.46/x
  3. Step 3: Cross multiply
    855,288.78x = 1,281,708.45 × 480,524.46
  4. Step 4: Simplify right side
    855,288.78x = 615,892,260,813.69
  5. Step 5: Solve for x
    x = 615,892,260,813.69/855,288.78
  6. Step 6: Final answer
    x = 720,098.61

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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.