Home / 762,709.57-1,144,072.55-230,235.21

Finding the Fourth Proportional to 762,709.57, 1,144,072.55 and 230,235.21

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Solution

The fourth proportional to 762,709.57, 1,144,072.55 and 230,235.21 is: 345,355.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,709.57 : 1,144,072.55 = 230,235.21 : x
  2. Step 2: Convert to fraction form
    762,709.57/1,144,072.55 = 230,235.21/x
  3. Step 3: Cross multiply
    762,709.57x = 1,144,072.55 × 230,235.21
  4. Step 4: Simplify right side
    762,709.57x = 263,405,784,380.07
  5. Step 5: Solve for x
    x = 263,405,784,380.07/762,709.57
  6. Step 6: Final answer
    x = 345,355.29

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Half scale
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Double scale
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Similar ratio
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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.