Home / 1,299,366.65-1,793,137.91-718,559.78

Finding the Fourth Proportional to 1,299,366.65, 1,793,137.91 and 718,559.78

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Solution

The fourth proportional to 1,299,366.65, 1,793,137.91 and 718,559.78 is: 991,619.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,366.65 : 1,793,137.91 = 718,559.78 : x
  2. Step 2: Convert to fraction form
    1,299,366.65/1,793,137.91 = 718,559.78/x
  3. Step 3: Cross multiply
    1,299,366.65x = 1,793,137.91 × 718,559.78
  4. Step 4: Simplify right side
    1,299,366.65x = 1,288,476,769,560.77
  5. Step 5: Solve for x
    x = 1,288,476,769,560.77/1,299,366.65
  6. Step 6: Final answer
    x = 991,619.08

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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.