Home / 775,497.75-1,163,247.05-354,478.38

Finding the Fourth Proportional to 775,497.75, 1,163,247.05 and 354,478.38

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Solution

The fourth proportional to 775,497.75, 1,163,247.05 and 354,478.38 is: 531,717.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,497.75 : 1,163,247.05 = 354,478.38 : x
  2. Step 2: Convert to fraction form
    775,497.75/1,163,247.05 = 354,478.38/x
  3. Step 3: Cross multiply
    775,497.75x = 1,163,247.05 × 354,478.38
  4. Step 4: Simplify right side
    775,497.75x = 412,345,929,823.78
  5. Step 5: Solve for x
    x = 412,345,929,823.78/775,497.75
  6. Step 6: Final answer
    x = 531,717.76

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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.