Home / 739,935.75-1,021,112.25-400,404

Finding the Fourth Proportional to 739,935.75, 1,021,112.25 and 400,404

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Solution

The fourth proportional to 739,935.75, 1,021,112.25 and 400,404 is: 552,558.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,935.75 : 1,021,112.25 = 400,404 : x
  2. Step 2: Convert to fraction form
    739,935.75/1,021,112.25 = 400,404/x
  3. Step 3: Cross multiply
    739,935.75x = 1,021,112.25 × 400,404
  4. Step 4: Simplify right side
    739,935.75x = 408,857,429,349
  5. Step 5: Solve for x
    x = 408,857,429,349/739,935.75
  6. Step 6: Final answer
    x = 552,558.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.