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Finding the Fourth Proportional to 906.05, 1,359.08 and 473.15

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Solution

The fourth proportional to 906.05, 1,359.08 and 473.15 is: 709.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    906.05 : 1,359.08 = 473.15 : x
  2. Step 2: Convert to fraction form
    906.05/1,359.08 = 473.15/x
  3. Step 3: Cross multiply
    906.05x = 1,359.08 × 473.15
  4. Step 4: Simplify right side
    906.05x = 643,048.70
  5. Step 5: Solve for x
    x = 643,048.70/906.05
  6. Step 6: Final answer
    x = 709.73

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Half scale
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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.