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Finding the Fourth Proportional to 505,964.85, 759,460.82 and 253,426.29

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Solution

The fourth proportional to 505,964.85, 759,460.82 and 253,426.29 is: 380,396.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,964.85 : 759,460.82 = 253,426.29 : x
  2. Step 2: Convert to fraction form
    505,964.85/759,460.82 = 253,426.29/x
  3. Step 3: Cross multiply
    505,964.85x = 759,460.82 × 253,426.29
  4. Step 4: Simplify right side
    505,964.85x = 192,467,338,012.96
  5. Step 5: Solve for x
    x = 192,467,338,012.96/505,964.85
  6. Step 6: Final answer
    x = 380,396.66

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Double scale
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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.