Home / 719,380.65-1,078,327.40-269,784.48

Finding the Fourth Proportional to 719,380.65, 1,078,327.40 and 269,784.48

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Solution

The fourth proportional to 719,380.65, 1,078,327.40 and 269,784.48 is: 404,397.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,380.65 : 1,078,327.40 = 269,784.48 : x
  2. Step 2: Convert to fraction form
    719,380.65/1,078,327.40 = 269,784.48/x
  3. Step 3: Cross multiply
    719,380.65x = 1,078,327.40 × 269,784.48
  4. Step 4: Simplify right side
    719,380.65x = 290,915,995,529.83
  5. Step 5: Solve for x
    x = 290,915,995,529.83/719,380.65
  6. Step 6: Final answer
    x = 404,397.86

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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.