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Finding the Fourth Proportional to 605,304, 907,620.48 and 280,738.08

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Solution

The fourth proportional to 605,304, 907,620.48 and 280,738.08 is: 420,951.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,304 : 907,620.48 = 280,738.08 : x
  2. Step 2: Convert to fraction form
    605,304/907,620.48 = 280,738.08/x
  3. Step 3: Cross multiply
    605,304x = 907,620.48 × 280,738.08
  4. Step 4: Simplify right side
    605,304x = 254,803,630,923.88
  5. Step 5: Solve for x
    x = 254,803,630,923.88/605,304
  6. Step 6: Final answer
    x = 420,951.51

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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.