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Finding the Fourth Proportional to 569,719.20, 853,887.60 and 253,840.80

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Solution

The fourth proportional to 569,719.20, 853,887.60 and 253,840.80 is: 380,453.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,719.20 : 853,887.60 = 253,840.80 : x
  2. Step 2: Convert to fraction form
    569,719.20/853,887.60 = 253,840.80/x
  3. Step 3: Cross multiply
    569,719.20x = 853,887.60 × 253,840.80
  4. Step 4: Simplify right side
    569,719.20x = 216,751,511,494.08
  5. Step 5: Solve for x
    x = 216,751,511,494.08/569,719.20
  6. Step 6: Final answer
    x = 380,453.23

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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.