Home / 718,632-1,078,130.25-269,354.16

Finding the Fourth Proportional to 718,632, 1,078,130.25 and 269,354.16

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Solution

The fourth proportional to 718,632, 1,078,130.25 and 269,354.16 is: 404,099.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,632 : 1,078,130.25 = 269,354.16 : x
  2. Step 2: Convert to fraction form
    718,632/1,078,130.25 = 269,354.16/x
  3. Step 3: Cross multiply
    718,632x = 1,078,130.25 × 269,354.16
  4. Step 4: Simplify right side
    718,632x = 290,398,867,859.34
  5. Step 5: Solve for x
    x = 290,398,867,859.34/718,632
  6. Step 6: Final answer
    x = 404,099.55

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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.