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Finding the Fourth Proportional to 583.91, 874.58 and 290.96

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Solution

The fourth proportional to 583.91, 874.58 and 290.96 is: 435.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.91 : 874.58 = 290.96 : x
  2. Step 2: Convert to fraction form
    583.91/874.58 = 290.96/x
  3. Step 3: Cross multiply
    583.91x = 874.58 × 290.96
  4. Step 4: Simplify right side
    583.91x = 254,461.97
  5. Step 5: Solve for x
    x = 254,461.97/583.91
  6. Step 6: Final answer
    x = 435.79

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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.