Home / 1,299,175.76-1,792,857-726,215.12

Finding the Fourth Proportional to 1,299,175.76, 1,792,857 and 726,215.12

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Solution

The fourth proportional to 1,299,175.76, 1,792,857 and 726,215.12 is: 1,002,173.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,175.76 : 1,792,857 = 726,215.12 : x
  2. Step 2: Convert to fraction form
    1,299,175.76/1,792,857 = 726,215.12/x
  3. Step 3: Cross multiply
    1,299,175.76x = 1,792,857 × 726,215.12
  4. Step 4: Simplify right side
    1,299,175.76x = 1,301,999,861,397.84
  5. Step 5: Solve for x
    x = 1,301,999,861,397.84/1,299,175.76
  6. Step 6: Final answer
    x = 1,002,173.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.