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Finding the Fourth Proportional to 621,791.37, 930,756.34 and 336,774.02

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Solution

The fourth proportional to 621,791.37, 930,756.34 and 336,774.02 is: 504,115.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,791.37 : 930,756.34 = 336,774.02 : x
  2. Step 2: Convert to fraction form
    621,791.37/930,756.34 = 336,774.02/x
  3. Step 3: Cross multiply
    621,791.37x = 930,756.34 × 336,774.02
  4. Step 4: Simplify right side
    621,791.37x = 313,454,549,608.51
  5. Step 5: Solve for x
    x = 313,454,549,608.51/621,791.37
  6. Step 6: Final answer
    x = 504,115.31

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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.