Home / 648,121.05-972,181.58-274,144.05

Finding the Fourth Proportional to 648,121.05, 972,181.58 and 274,144.05

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Solution

The fourth proportional to 648,121.05, 972,181.58 and 274,144.05 is: 411,216.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,121.05 : 972,181.58 = 274,144.05 : x
  2. Step 2: Convert to fraction form
    648,121.05/972,181.58 = 274,144.05/x
  3. Step 3: Cross multiply
    648,121.05x = 972,181.58 × 274,144.05
  4. Step 4: Simplify right side
    648,121.05x = 266,517,794,305.88
  5. Step 5: Solve for x
    x = 266,517,794,305.88/648,121.05
  6. Step 6: Final answer
    x = 411,216.08

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Double scale
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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.