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Finding the Fourth Proportional to 794.71, 1,096.69 and 445.40

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Solution

The fourth proportional to 794.71, 1,096.69 and 445.40 is: 614.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.71 : 1,096.69 = 445.40 : x
  2. Step 2: Convert to fraction form
    794.71/1,096.69 = 445.40/x
  3. Step 3: Cross multiply
    794.71x = 1,096.69 × 445.40
  4. Step 4: Simplify right side
    794.71x = 488,465.73
  5. Step 5: Solve for x
    x = 488,465.73/794.71
  6. Step 6: Final answer
    x = 614.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.