Home / 804,942.20-1,207,413.30-431,694.20

Finding the Fourth Proportional to 804,942.20, 1,207,413.30 and 431,694.20

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Solution

The fourth proportional to 804,942.20, 1,207,413.30 and 431,694.20 is: 647,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,942.20 : 1,207,413.30 = 431,694.20 : x
  2. Step 2: Convert to fraction form
    804,942.20/1,207,413.30 = 431,694.20/x
  3. Step 3: Cross multiply
    804,942.20x = 1,207,413.30 × 431,694.20
  4. Step 4: Simplify right side
    804,942.20x = 521,233,318,612.86
  5. Step 5: Solve for x
    x = 521,233,318,612.86/804,942.20
  6. Step 6: Final answer
    x = 647,541.30

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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.