Home / 855,212.64-1,282,439.88-455,778.96

Finding the Fourth Proportional to 855,212.64, 1,282,439.88 and 455,778.96

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Solution

The fourth proportional to 855,212.64, 1,282,439.88 and 455,778.96 is: 683,466.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,212.64 : 1,282,439.88 = 455,778.96 : x
  2. Step 2: Convert to fraction form
    855,212.64/1,282,439.88 = 455,778.96/x
  3. Step 3: Cross multiply
    855,212.64x = 1,282,439.88 × 455,778.96
  4. Step 4: Simplify right side
    855,212.64x = 584,509,114,768.93
  5. Step 5: Solve for x
    x = 584,509,114,768.93/855,212.64
  6. Step 6: Final answer
    x = 683,466.41

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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.