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Finding the Fourth Proportional to 569.63, 785.81 and 348.19

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Solution

The fourth proportional to 569.63, 785.81 and 348.19 is: 480.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.63 : 785.81 = 348.19 : x
  2. Step 2: Convert to fraction form
    569.63/785.81 = 348.19/x
  3. Step 3: Cross multiply
    569.63x = 785.81 × 348.19
  4. Step 4: Simplify right side
    569.63x = 273,609.44
  5. Step 5: Solve for x
    x = 273,609.44/569.63
  6. Step 6: Final answer
    x = 480.33

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.