Home / 830,507.28-1,245,662.51-269,541.78

Finding the Fourth Proportional to 830,507.28, 1,245,662.51 and 269,541.78

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Solution

The fourth proportional to 830,507.28, 1,245,662.51 and 269,541.78 is: 404,280.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,507.28 : 1,245,662.51 = 269,541.78 : x
  2. Step 2: Convert to fraction form
    830,507.28/1,245,662.51 = 269,541.78/x
  3. Step 3: Cross multiply
    830,507.28x = 1,245,662.51 × 269,541.78
  4. Step 4: Simplify right side
    830,507.28x = 335,758,088,876.96
  5. Step 5: Solve for x
    x = 335,758,088,876.96/830,507.28
  6. Step 6: Final answer
    x = 404,280.73

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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.