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Finding the Fourth Proportional to 1,176.75, 1,623.84 and 652.75

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Solution

The fourth proportional to 1,176.75, 1,623.84 and 652.75 is: 900.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.75 : 1,623.84 = 652.75 : x
  2. Step 2: Convert to fraction form
    1,176.75/1,623.84 = 652.75/x
  3. Step 3: Cross multiply
    1,176.75x = 1,623.84 × 652.75
  4. Step 4: Simplify right side
    1,176.75x = 1,059,961.56
  5. Step 5: Solve for x
    x = 1,059,961.56/1,176.75
  6. Step 6: Final answer
    x = 900.75

Related Problems

Find fourth proportional to 588.38, 811.92 and 326.38
Half scale
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Double scale
Find fourth proportional to 1,177.75, 1,625.22 and 653.75
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.