Home / 762,045.72-1,143,111.78-229,640.28

Finding the Fourth Proportional to 762,045.72, 1,143,111.78 and 229,640.28

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Solution

The fourth proportional to 762,045.72, 1,143,111.78 and 229,640.28 is: 344,473.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,045.72 : 1,143,111.78 = 229,640.28 : x
  2. Step 2: Convert to fraction form
    762,045.72/1,143,111.78 = 229,640.28/x
  3. Step 3: Cross multiply
    762,045.72x = 1,143,111.78 × 229,640.28
  4. Step 4: Simplify right side
    762,045.72x = 262,504,509,230.50
  5. Step 5: Solve for x
    x = 262,504,509,230.50/762,045.72
  6. Step 6: Final answer
    x = 344,473.44

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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.