Home / 816,747.37-1,225,179.38-217,705.39

Finding the Fourth Proportional to 816,747.37, 1,225,179.38 and 217,705.39

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Solution

The fourth proportional to 816,747.37, 1,225,179.38 and 217,705.39 is: 326,573.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,747.37 : 1,225,179.38 = 217,705.39 : x
  2. Step 2: Convert to fraction form
    816,747.37/1,225,179.38 = 217,705.39/x
  3. Step 3: Cross multiply
    816,747.37x = 1,225,179.38 × 217,705.39
  4. Step 4: Simplify right side
    816,747.37x = 266,728,154,742.86
  5. Step 5: Solve for x
    x = 266,728,154,742.86/816,747.37
  6. Step 6: Final answer
    x = 326,573.63

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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.