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Finding the Fourth Proportional to 944.76, 1,303.78 and 571.78

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Solution

The fourth proportional to 944.76, 1,303.78 and 571.78 is: 789.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.76 : 1,303.78 = 571.78 : x
  2. Step 2: Convert to fraction form
    944.76/1,303.78 = 571.78/x
  3. Step 3: Cross multiply
    944.76x = 1,303.78 × 571.78
  4. Step 4: Simplify right side
    944.76x = 745,475.33
  5. Step 5: Solve for x
    x = 745,475.33/944.76
  6. Step 6: Final answer
    x = 789.06

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Double scale
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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.