Home / 753,868.32-1,040,309.73-431,608.38

Finding the Fourth Proportional to 753,868.32, 1,040,309.73 and 431,608.38

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Solution

The fourth proportional to 753,868.32, 1,040,309.73 and 431,608.38 is: 595,603.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,868.32 : 1,040,309.73 = 431,608.38 : x
  2. Step 2: Convert to fraction form
    753,868.32/1,040,309.73 = 431,608.38/x
  3. Step 3: Cross multiply
    753,868.32x = 1,040,309.73 × 431,608.38
  4. Step 4: Simplify right side
    753,868.32x = 449,006,397,263.54
  5. Step 5: Solve for x
    x = 449,006,397,263.54/753,868.32
  6. Step 6: Final answer
    x = 595,603.22

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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.