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Finding the Fourth Proportional to 569.94, 786.28 and 378.35

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Solution

The fourth proportional to 569.94, 786.28 and 378.35 is: 521.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.94 : 786.28 = 378.35 : x
  2. Step 2: Convert to fraction form
    569.94/786.28 = 378.35/x
  3. Step 3: Cross multiply
    569.94x = 786.28 × 378.35
  4. Step 4: Simplify right side
    569.94x = 297,492.29
  5. Step 5: Solve for x
    x = 297,492.29/569.94
  6. Step 6: Final answer
    x = 521.97

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Double scale
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Similar ratio
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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.