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Finding the Fourth Proportional to 615.13, 848.61 and 410.55

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Solution

The fourth proportional to 615.13, 848.61 and 410.55 is: 566.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.13 : 848.61 = 410.55 : x
  2. Step 2: Convert to fraction form
    615.13/848.61 = 410.55/x
  3. Step 3: Cross multiply
    615.13x = 848.61 × 410.55
  4. Step 4: Simplify right side
    615.13x = 348,396.84
  5. Step 5: Solve for x
    x = 348,396.84/615.13
  6. Step 6: Final answer
    x = 566.38

Related Problems

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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.