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Finding the Fourth Proportional to 637.66, 880.68 and 601.21

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Solution

The fourth proportional to 637.66, 880.68 and 601.21 is: 830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.66 : 880.68 = 601.21 : x
  2. Step 2: Convert to fraction form
    637.66/880.68 = 601.21/x
  3. Step 3: Cross multiply
    637.66x = 880.68 × 601.21
  4. Step 4: Simplify right side
    637.66x = 529,473.62
  5. Step 5: Solve for x
    x = 529,473.62/637.66
  6. Step 6: Final answer
    x = 830.34

Related Problems

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