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Finding the Fourth Proportional to 560,855.37, 773,976.41 and 306,206.55

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Solution

The fourth proportional to 560,855.37, 773,976.41 and 306,206.55 is: 422,562.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,855.37 : 773,976.41 = 306,206.55 : x
  2. Step 2: Convert to fraction form
    560,855.37/773,976.41 = 306,206.55/x
  3. Step 3: Cross multiply
    560,855.37x = 773,976.41 × 306,206.55
  4. Step 4: Simplify right side
    560,855.37x = 236,996,644,756.45
  5. Step 5: Solve for x
    x = 236,996,644,756.45/560,855.37
  6. Step 6: Final answer
    x = 422,562.85

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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.