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Finding the Fourth Proportional to 848.75, 1,170.92 and 517.05

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Solution

The fourth proportional to 848.75, 1,170.92 and 517.05 is: 713.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.75 : 1,170.92 = 517.05 : x
  2. Step 2: Convert to fraction form
    848.75/1,170.92 = 517.05/x
  3. Step 3: Cross multiply
    848.75x = 1,170.92 × 517.05
  4. Step 4: Simplify right side
    848.75x = 605,423.30
  5. Step 5: Solve for x
    x = 605,423.30/848.75
  6. Step 6: Final answer
    x = 713.32

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Double scale
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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.