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Finding the Fourth Proportional to 520,287.44, 780,536.64 and 295,755.44

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Solution

The fourth proportional to 520,287.44, 780,536.64 and 295,755.44 is: 443,693.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,287.44 : 780,536.64 = 295,755.44 : x
  2. Step 2: Convert to fraction form
    520,287.44/780,536.64 = 295,755.44/x
  3. Step 3: Cross multiply
    520,287.44x = 780,536.64 × 295,755.44
  4. Step 4: Simplify right side
    520,287.44x = 230,847,957,399.32
  5. Step 5: Solve for x
    x = 230,847,957,399.32/520,287.44
  6. Step 6: Final answer
    x = 443,693.12

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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.