Home / 1,299,057.66-1,792,667.74-718,265.49

Finding the Fourth Proportional to 1,299,057.66, 1,792,667.74 and 718,265.49

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Solution

The fourth proportional to 1,299,057.66, 1,792,667.74 and 718,265.49 is: 991,188.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,057.66 : 1,792,667.74 = 718,265.49 : x
  2. Step 2: Convert to fraction form
    1,299,057.66/1,792,667.74 = 718,265.49/x
  3. Step 3: Cross multiply
    1,299,057.66x = 1,792,667.74 × 718,265.49
  4. Step 4: Simplify right side
    1,299,057.66x = 1,287,611,372,678.29
  5. Step 5: Solve for x
    x = 1,287,611,372,678.29/1,299,057.66
  6. Step 6: Final answer
    x = 991,188.78

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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.