Home / 719,112-1,078,387.64-269,587.84

Finding the Fourth Proportional to 719,112, 1,078,387.64 and 269,587.84

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Solution

The fourth proportional to 719,112, 1,078,387.64 and 269,587.84 is: 404,276.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,112 : 1,078,387.64 = 269,587.84 : x
  2. Step 2: Convert to fraction form
    719,112/1,078,387.64 = 269,587.84/x
  3. Step 3: Cross multiply
    719,112x = 1,078,387.64 × 269,587.84
  4. Step 4: Simplify right side
    719,112x = 290,720,194,550.30
  5. Step 5: Solve for x
    x = 290,720,194,550.30/719,112
  6. Step 6: Final answer
    x = 404,276.66

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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.