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Finding the Fourth Proportional to 560,279.66, 773,184.99 and 305,630.85

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Solution

The fourth proportional to 560,279.66, 773,184.99 and 305,630.85 is: 421,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,279.66 : 773,184.99 = 305,630.85 : x
  2. Step 2: Convert to fraction form
    560,279.66/773,184.99 = 305,630.85/x
  3. Step 3: Cross multiply
    560,279.66x = 773,184.99 × 305,630.85
  4. Step 4: Simplify right side
    560,279.66x = 236,309,181,835.02
  5. Step 5: Solve for x
    x = 236,309,181,835.02/560,279.66
  6. Step 6: Final answer
    x = 421,770.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.