Home / 505,370.56-756,847.32-291,490.10

Finding the Fourth Proportional to 505,370.56, 756,847.32 and 291,490.10

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Solution

The fourth proportional to 505,370.56, 756,847.32 and 291,490.10 is: 436,538.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,370.56 : 756,847.32 = 291,490.10 : x
  2. Step 2: Convert to fraction form
    505,370.56/756,847.32 = 291,490.10/x
  3. Step 3: Cross multiply
    505,370.56x = 756,847.32 × 291,490.10
  4. Step 4: Simplify right side
    505,370.56x = 220,613,500,991.53
  5. Step 5: Solve for x
    x = 220,613,500,991.53/505,370.56
  6. Step 6: Final answer
    x = 436,538.09

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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.