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Finding the Fourth Proportional to 984.95, 1,477.56 and 335.63

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Solution

The fourth proportional to 984.95, 1,477.56 and 335.63 is: 503.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    984.95 : 1,477.56 = 335.63 : x
  2. Step 2: Convert to fraction form
    984.95/1,477.56 = 335.63/x
  3. Step 3: Cross multiply
    984.95x = 1,477.56 × 335.63
  4. Step 4: Simplify right side
    984.95x = 495,906.08
  5. Step 5: Solve for x
    x = 495,906.08/984.95
  6. Step 6: Final answer
    x = 503.49

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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.