Home / 1,299,235.85-1,792,957.09-718,498.32

Finding the Fourth Proportional to 1,299,235.85, 1,792,957.09 and 718,498.32

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Solution

The fourth proportional to 1,299,235.85, 1,792,957.09 and 718,498.32 is: 991,534.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,235.85 : 1,792,957.09 = 718,498.32 : x
  2. Step 2: Convert to fraction form
    1,299,235.85/1,792,957.09 = 718,498.32/x
  3. Step 3: Cross multiply
    1,299,235.85x = 1,792,957.09 × 718,498.32
  4. Step 4: Simplify right side
    1,299,235.85x = 1,288,236,654,867.13
  5. Step 5: Solve for x
    x = 1,288,236,654,867.13/1,299,235.85
  6. Step 6: Final answer
    x = 991,534.11

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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.