Home / 809,432.80-1,213,747.36-276,802.72

Finding the Fourth Proportional to 809,432.80, 1,213,747.36 and 276,802.72

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Solution

The fourth proportional to 809,432.80, 1,213,747.36 and 276,802.72 is: 415,066.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,432.80 : 1,213,747.36 = 276,802.72 : x
  2. Step 2: Convert to fraction form
    809,432.80/1,213,747.36 = 276,802.72/x
  3. Step 3: Cross multiply
    809,432.80x = 1,213,747.36 × 276,802.72
  4. Step 4: Simplify right side
    809,432.80x = 335,968,570,640.82
  5. Step 5: Solve for x
    x = 335,968,570,640.82/809,432.80
  6. Step 6: Final answer
    x = 415,066.66

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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.