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Finding the Fourth Proportional to 505,308.44, 757,560.18 and 291,834.20

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Solution

The fourth proportional to 505,308.44, 757,560.18 and 291,834.20 is: 437,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,308.44 : 757,560.18 = 291,834.20 : x
  2. Step 2: Convert to fraction form
    505,308.44/757,560.18 = 291,834.20/x
  3. Step 3: Cross multiply
    505,308.44x = 757,560.18 × 291,834.20
  4. Step 4: Simplify right side
    505,308.44x = 221,081,969,082.16
  5. Step 5: Solve for x
    x = 221,081,969,082.16/505,308.44
  6. Step 6: Final answer
    x = 437,518.85

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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.