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Finding the Fourth Proportional to 798.24, 1,196.70 and 555.24

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Solution

The fourth proportional to 798.24, 1,196.70 and 555.24 is: 832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.24 : 1,196.70 = 555.24 : x
  2. Step 2: Convert to fraction form
    798.24/1,196.70 = 555.24/x
  3. Step 3: Cross multiply
    798.24x = 1,196.70 × 555.24
  4. Step 4: Simplify right side
    798.24x = 664,455.71
  5. Step 5: Solve for x
    x = 664,455.71/798.24
  6. Step 6: Final answer
    x = 832.40

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Double scale
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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.