Home / 855,245.64-1,282,489.32-455,811.96

Finding the Fourth Proportional to 855,245.64, 1,282,489.32 and 455,811.96

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Solution

The fourth proportional to 855,245.64, 1,282,489.32 and 455,811.96 is: 683,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,245.64 : 1,282,489.32 = 455,811.96 : x
  2. Step 2: Convert to fraction form
    855,245.64/1,282,489.32 = 455,811.96/x
  3. Step 3: Cross multiply
    855,245.64x = 1,282,489.32 × 455,811.96
  4. Step 4: Simplify right side
    855,245.64x = 584,573,970,628.27
  5. Step 5: Solve for x
    x = 584,573,970,628.27/855,245.64
  6. Step 6: Final answer
    x = 683,515.87

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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.