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Finding the Fourth Proportional to 735.56, 1,015.40 and 473.72

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Solution

The fourth proportional to 735.56, 1,015.40 and 473.72 is: 653.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.56 : 1,015.40 = 473.72 : x
  2. Step 2: Convert to fraction form
    735.56/1,015.40 = 473.72/x
  3. Step 3: Cross multiply
    735.56x = 1,015.40 × 473.72
  4. Step 4: Simplify right side
    735.56x = 481,015.46
  5. Step 5: Solve for x
    x = 481,015.46/735.56
  6. Step 6: Final answer
    x = 653.95

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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.