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Finding the Fourth Proportional to 569,109.20, 853,663.80 and 303,388.70

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Solution

The fourth proportional to 569,109.20, 853,663.80 and 303,388.70 is: 455,083.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,109.20 : 853,663.80 = 303,388.70 : x
  2. Step 2: Convert to fraction form
    569,109.20/853,663.80 = 303,388.70/x
  3. Step 3: Cross multiply
    569,109.20x = 853,663.80 × 303,388.70
  4. Step 4: Simplify right side
    569,109.20x = 258,991,950,519.06
  5. Step 5: Solve for x
    x = 258,991,950,519.06/569,109.20
  6. Step 6: Final answer
    x = 455,083.05

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Similar ratio
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1.5x scale

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.