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Finding the Fourth Proportional to 605,806.24, 908,242.80 and 290,100.64

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Solution

The fourth proportional to 605,806.24, 908,242.80 and 290,100.64 is: 434,927.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,806.24 : 908,242.80 = 290,100.64 : x
  2. Step 2: Convert to fraction form
    605,806.24/908,242.80 = 290,100.64/x
  3. Step 3: Cross multiply
    605,806.24x = 908,242.80 × 290,100.64
  4. Step 4: Simplify right side
    605,806.24x = 263,481,817,555.39
  5. Step 5: Solve for x
    x = 263,481,817,555.39/605,806.24
  6. Step 6: Final answer
    x = 434,927.54

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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.