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Finding the Fourth Proportional to 622,360, 858,805.74 and 350,340.94

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Solution

The fourth proportional to 622,360, 858,805.74 and 350,340.94 is: 483,441.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,360 : 858,805.74 = 350,340.94 : x
  2. Step 2: Convert to fraction form
    622,360/858,805.74 = 350,340.94/x
  3. Step 3: Cross multiply
    622,360x = 858,805.74 × 350,340.94
  4. Step 4: Simplify right side
    622,360x = 300,874,810,229.00
  5. Step 5: Solve for x
    x = 300,874,810,229.00/622,360
  6. Step 6: Final answer
    x = 483,441.75

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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.