Home / 1,761,819.75-2,642,729.64-432,123.75

Finding the Fourth Proportional to 1,761,819.75, 2,642,729.64 and 432,123.75

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Solution

The fourth proportional to 1,761,819.75, 2,642,729.64 and 432,123.75 is: 648,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,819.75 : 2,642,729.64 = 432,123.75 : x
  2. Step 2: Convert to fraction form
    1,761,819.75/2,642,729.64 = 432,123.75/x
  3. Step 3: Cross multiply
    1,761,819.75x = 2,642,729.64 × 432,123.75
  4. Step 4: Simplify right side
    1,761,819.75x = 1,141,986,242,272.95
  5. Step 5: Solve for x
    x = 1,141,986,242,272.95/1,761,819.75
  6. Step 6: Final answer
    x = 648,185.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.