Home / 820,494.24-1,230,731.46-213,228.75

Finding the Fourth Proportional to 820,494.24, 1,230,731.46 and 213,228.75

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Solution

The fourth proportional to 820,494.24, 1,230,731.46 and 213,228.75 is: 319,840.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,494.24 : 1,230,731.46 = 213,228.75 : x
  2. Step 2: Convert to fraction form
    820,494.24/1,230,731.46 = 213,228.75/x
  3. Step 3: Cross multiply
    820,494.24x = 1,230,731.46 × 213,228.75
  4. Step 4: Simplify right side
    820,494.24x = 262,427,330,801.48
  5. Step 5: Solve for x
    x = 262,427,330,801.48/820,494.24
  6. Step 6: Final answer
    x = 319,840.55

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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.