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Finding the Fourth Proportional to 822.75, 1,135.53 and 473.37

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Solution

The fourth proportional to 822.75, 1,135.53 and 473.37 is: 653.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    822.75 : 1,135.53 = 473.37 : x
  2. Step 2: Convert to fraction form
    822.75/1,135.53 = 473.37/x
  3. Step 3: Cross multiply
    822.75x = 1,135.53 × 473.37
  4. Step 4: Simplify right side
    822.75x = 537,525.84
  5. Step 5: Solve for x
    x = 537,525.84/822.75
  6. Step 6: Final answer
    x = 653.33

Related Problems

Find fourth proportional to 411.38, 567.77 and 236.69
Half scale
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Double scale
Find fourth proportional to 823.75, 1,136.91 and 474.37
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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.