Home / 969,953.64-1,338,299.97-638,775.37

Finding the Fourth Proportional to 969,953.64, 1,338,299.97 and 638,775.37

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Solution

The fourth proportional to 969,953.64, 1,338,299.97 and 638,775.37 is: 881,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,953.64 : 1,338,299.97 = 638,775.37 : x
  2. Step 2: Convert to fraction form
    969,953.64/1,338,299.97 = 638,775.37/x
  3. Step 3: Cross multiply
    969,953.64x = 1,338,299.97 × 638,775.37
  4. Step 4: Simplify right side
    969,953.64x = 854,873,058,277.06
  5. Step 5: Solve for x
    x = 854,873,058,277.06/969,953.64
  6. Step 6: Final answer
    x = 881,354.56

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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.