Home / 638,014.62-880,480.12-366,132.25

Finding the Fourth Proportional to 638,014.62, 880,480.12 and 366,132.25

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Solution

The fourth proportional to 638,014.62, 880,480.12 and 366,132.25 is: 505,273.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,014.62 : 880,480.12 = 366,132.25 : x
  2. Step 2: Convert to fraction form
    638,014.62/880,480.12 = 366,132.25/x
  3. Step 3: Cross multiply
    638,014.62x = 880,480.12 × 366,132.25
  4. Step 4: Simplify right side
    638,014.62x = 322,372,167,415.87
  5. Step 5: Solve for x
    x = 322,372,167,415.87/638,014.62
  6. Step 6: Final answer
    x = 505,273.95

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.