Home / 1,299,091.32-1,792,708.91-718,304.45

Finding the Fourth Proportional to 1,299,091.32, 1,792,708.91 and 718,304.45

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Solution

The fourth proportional to 1,299,091.32, 1,792,708.91 and 718,304.45 is: 991,239.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,091.32 : 1,792,708.91 = 718,304.45 : x
  2. Step 2: Convert to fraction form
    1,299,091.32/1,792,708.91 = 718,304.45/x
  3. Step 3: Cross multiply
    1,299,091.32x = 1,792,708.91 × 718,304.45
  4. Step 4: Simplify right side
    1,299,091.32x = 1,287,710,775,052.58
  5. Step 5: Solve for x
    x = 1,287,710,775,052.58/1,299,091.32
  6. Step 6: Final answer
    x = 991,239.61

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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.