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Finding the Fourth Proportional to 624.96, 935.52 and 396.48

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Solution

The fourth proportional to 624.96, 935.52 and 396.48 is: 593.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.96 : 935.52 = 396.48 : x
  2. Step 2: Convert to fraction form
    624.96/935.52 = 396.48/x
  3. Step 3: Cross multiply
    624.96x = 935.52 × 396.48
  4. Step 4: Simplify right side
    624.96x = 370,914.97
  5. Step 5: Solve for x
    x = 370,914.97/624.96
  6. Step 6: Final answer
    x = 593.50

Related Problems

Find fourth proportional to 312.48, 467.76 and 198.24
Half scale
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Double scale
Find fourth proportional to 625.96, 937.02 and 397.48
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.