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Finding the Fourth Proportional to 560,767.72, 773,855.40 and 306,118.84

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Solution

The fourth proportional to 560,767.72, 773,855.40 and 306,118.84 is: 422,441.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,767.72 : 773,855.40 = 306,118.84 : x
  2. Step 2: Convert to fraction form
    560,767.72/773,855.40 = 306,118.84/x
  3. Step 3: Cross multiply
    560,767.72x = 773,855.40 × 306,118.84
  4. Step 4: Simplify right side
    560,767.72x = 236,891,717,375.74
  5. Step 5: Solve for x
    x = 236,891,717,375.74/560,767.72
  6. Step 6: Final answer
    x = 422,441.79

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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.