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Finding the Fourth Proportional to 749.23, 1,122.86 and 332.62

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Solution

The fourth proportional to 749.23, 1,122.86 and 332.62 is: 498.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    749.23 : 1,122.86 = 332.62 : x
  2. Step 2: Convert to fraction form
    749.23/1,122.86 = 332.62/x
  3. Step 3: Cross multiply
    749.23x = 1,122.86 × 332.62
  4. Step 4: Simplify right side
    749.23x = 373,485.69
  5. Step 5: Solve for x
    x = 373,485.69/749.23
  6. Step 6: Final answer
    x = 498.49

Related Problems

Find fourth proportional to 374.62, 561.43 and 166.31
Half scale
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Double scale
Find fourth proportional to 750.23, 1,124.36 and 333.62
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.