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Finding the Fourth Proportional to 569,111.20, 853,666.80 and 303,390.70

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Solution

The fourth proportional to 569,111.20, 853,666.80 and 303,390.70 is: 455,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,111.20 : 853,666.80 = 303,390.70 : x
  2. Step 2: Convert to fraction form
    569,111.20/853,666.80 = 303,390.70/x
  3. Step 3: Cross multiply
    569,111.20x = 853,666.80 × 303,390.70
  4. Step 4: Simplify right side
    569,111.20x = 258,994,568,018.76
  5. Step 5: Solve for x
    x = 258,994,568,018.76/569,111.20
  6. Step 6: Final answer
    x = 455,086.05

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Similar ratio
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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.