Home / 1,291,934.58-1,782,856.71-718,965.06

Finding the Fourth Proportional to 1,291,934.58, 1,782,856.71 and 718,965.06

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Solution

The fourth proportional to 1,291,934.58, 1,782,856.71 and 718,965.06 is: 992,164.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,934.58 : 1,782,856.71 = 718,965.06 : x
  2. Step 2: Convert to fraction form
    1,291,934.58/1,782,856.71 = 718,965.06/x
  3. Step 3: Cross multiply
    1,291,934.58x = 1,782,856.71 × 718,965.06
  4. Step 4: Simplify right side
    1,291,934.58x = 1,281,811,681,476.55
  5. Step 5: Solve for x
    x = 1,281,811,681,476.55/1,291,934.58
  6. Step 6: Final answer
    x = 992,164.54

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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.