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Finding the Fourth Proportional to 614.96, 848.80 and 440.32

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Solution

The fourth proportional to 614.96, 848.80 and 440.32 is: 607.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.96 : 848.80 = 440.32 : x
  2. Step 2: Convert to fraction form
    614.96/848.80 = 440.32/x
  3. Step 3: Cross multiply
    614.96x = 848.80 × 440.32
  4. Step 4: Simplify right side
    614.96x = 373,743.62
  5. Step 5: Solve for x
    x = 373,743.62/614.96
  6. Step 6: Final answer
    x = 607.75

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.