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Finding the Fourth Proportional to 605,273.55, 907,571.33 and 280,713.65

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Solution

The fourth proportional to 605,273.55, 907,571.33 and 280,713.65 is: 420,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,273.55 : 907,571.33 = 280,713.65 : x
  2. Step 2: Convert to fraction form
    605,273.55/907,571.33 = 280,713.65/x
  3. Step 3: Cross multiply
    605,273.55x = 907,571.33 × 280,713.65
  4. Step 4: Simplify right side
    605,273.55x = 254,767,654,738.23
  5. Step 5: Solve for x
    x = 254,767,654,738.23/605,273.55
  6. Step 6: Final answer
    x = 420,913.25

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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.