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Finding the Fourth Proportional to 619,980.82, 929,105.10 and 335,057.11

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Solution

The fourth proportional to 619,980.82, 929,105.10 and 335,057.11 is: 502,117.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,980.82 : 929,105.10 = 335,057.11 : x
  2. Step 2: Convert to fraction form
    619,980.82/929,105.10 = 335,057.11/x
  3. Step 3: Cross multiply
    619,980.82x = 929,105.10 × 335,057.11
  4. Step 4: Simplify right side
    619,980.82x = 311,303,269,692.26
  5. Step 5: Solve for x
    x = 311,303,269,692.26/619,980.82
  6. Step 6: Final answer
    x = 502,117.58

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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.