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Finding the Fourth Proportional to 569.83, 786.10 and 348.76

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Solution

The fourth proportional to 569.83, 786.10 and 348.76 is: 481.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.83 : 786.10 = 348.76 : x
  2. Step 2: Convert to fraction form
    569.83/786.10 = 348.76/x
  3. Step 3: Cross multiply
    569.83x = 786.10 × 348.76
  4. Step 4: Simplify right side
    569.83x = 274,160.24
  5. Step 5: Solve for x
    x = 274,160.24/569.83
  6. Step 6: Final answer
    x = 481.13

Related Problems

Find fourth proportional to 284.92, 393.05 and 174.38
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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.