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Finding the Fourth Proportional to 583.66, 874.86 and 290.76

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Solution

The fourth proportional to 583.66, 874.86 and 290.76 is: 435.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.66 : 874.86 = 290.76 : x
  2. Step 2: Convert to fraction form
    583.66/874.86 = 290.76/x
  3. Step 3: Cross multiply
    583.66x = 874.86 × 290.76
  4. Step 4: Simplify right side
    583.66x = 254,374.29
  5. Step 5: Solve for x
    x = 254,374.29/583.66
  6. Step 6: Final answer
    x = 435.83

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Double scale
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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.