Home / 676,942.60-1,015,413.90-256,232.20

Finding the Fourth Proportional to 676,942.60, 1,015,413.90 and 256,232.20

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Solution

The fourth proportional to 676,942.60, 1,015,413.90 and 256,232.20 is: 384,348.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,942.60 : 1,015,413.90 = 256,232.20 : x
  2. Step 2: Convert to fraction form
    676,942.60/1,015,413.90 = 256,232.20/x
  3. Step 3: Cross multiply
    676,942.60x = 1,015,413.90 × 256,232.20
  4. Step 4: Simplify right side
    676,942.60x = 260,181,737,507.58
  5. Step 5: Solve for x
    x = 260,181,737,507.58/676,942.60
  6. Step 6: Final answer
    x = 384,348.30

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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.