Home / 1,215,243.52-1,823,123.76-416,310.64

Finding the Fourth Proportional to 1,215,243.52, 1,823,123.76 and 416,310.64

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Solution

The fourth proportional to 1,215,243.52, 1,823,123.76 and 416,310.64 is: 624,554.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,243.52 : 1,823,123.76 = 416,310.64 : x
  2. Step 2: Convert to fraction form
    1,215,243.52/1,823,123.76 = 416,310.64/x
  3. Step 3: Cross multiply
    1,215,243.52x = 1,823,123.76 × 416,310.64
  4. Step 4: Simplify right side
    1,215,243.52x = 758,985,819,324.81
  5. Step 5: Solve for x
    x = 758,985,819,324.81/1,215,243.52
  6. Step 6: Final answer
    x = 624,554.51

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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.