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Finding the Fourth Proportional to 585.99, 879.06 and 380.97

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Solution

The fourth proportional to 585.99, 879.06 and 380.97 is: 571.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.99 : 879.06 = 380.97 : x
  2. Step 2: Convert to fraction form
    585.99/879.06 = 380.97/x
  3. Step 3: Cross multiply
    585.99x = 879.06 × 380.97
  4. Step 4: Simplify right side
    585.99x = 334,895.49
  5. Step 5: Solve for x
    x = 334,895.49/585.99
  6. Step 6: Final answer
    x = 571.50

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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.