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Finding the Fourth Proportional to 845.75, 1,167.16 and 472.75

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Solution

The fourth proportional to 845.75, 1,167.16 and 472.75 is: 652.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.75 : 1,167.16 = 472.75 : x
  2. Step 2: Convert to fraction form
    845.75/1,167.16 = 472.75/x
  3. Step 3: Cross multiply
    845.75x = 1,167.16 × 472.75
  4. Step 4: Simplify right side
    845.75x = 551,774.89
  5. Step 5: Solve for x
    x = 551,774.89/845.75
  6. Step 6: Final answer
    x = 652.41

Related Problems

Find fourth proportional to 422.88, 583.58 and 236.38
Half scale
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Double scale
Find fourth proportional to 846.75, 1,168.54 and 473.75
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.