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Finding the Fourth Proportional to 620,908.89, 930,584.20 and 265,504.98

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Solution

The fourth proportional to 620,908.89, 930,584.20 and 265,504.98 is: 397,924.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,908.89 : 930,584.20 = 265,504.98 : x
  2. Step 2: Convert to fraction form
    620,908.89/930,584.20 = 265,504.98/x
  3. Step 3: Cross multiply
    620,908.89x = 930,584.20 × 265,504.98
  4. Step 4: Simplify right side
    620,908.89x = 247,074,739,409.32
  5. Step 5: Solve for x
    x = 247,074,739,409.32/620,908.89
  6. Step 6: Final answer
    x = 397,924.31

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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.