Home / 1,086,421.77-1,499,447.59-627,453.85

Finding the Fourth Proportional to 1,086,421.77, 1,499,447.59 and 627,453.85

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Solution

The fourth proportional to 1,086,421.77, 1,499,447.59 and 627,453.85 is: 865,993.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,421.77 : 1,499,447.59 = 627,453.85 : x
  2. Step 2: Convert to fraction form
    1,086,421.77/1,499,447.59 = 627,453.85/x
  3. Step 3: Cross multiply
    1,086,421.77x = 1,499,447.59 × 627,453.85
  4. Step 4: Simplify right side
    1,086,421.77x = 940,834,163,218.72
  5. Step 5: Solve for x
    x = 940,834,163,218.72/1,086,421.77
  6. Step 6: Final answer
    x = 865,993.47

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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.