Home / 1,291,865.58-1,782,761.67-718,895.88

Finding the Fourth Proportional to 1,291,865.58, 1,782,761.67 and 718,895.88

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Solution

The fourth proportional to 1,291,865.58, 1,782,761.67 and 718,895.88 is: 992,069.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,865.58 : 1,782,761.67 = 718,895.88 : x
  2. Step 2: Convert to fraction form
    1,291,865.58/1,782,761.67 = 718,895.88/x
  3. Step 3: Cross multiply
    1,291,865.58x = 1,782,761.67 × 718,895.88
  4. Step 4: Simplify right side
    1,291,865.58x = 1,281,620,019,584.92
  5. Step 5: Solve for x
    x = 1,281,620,019,584.92/1,291,865.58
  6. Step 6: Final answer
    x = 992,069.17

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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.