Home / 671,657.87-1,007,619.77-191,889.76

Finding the Fourth Proportional to 671,657.87, 1,007,619.77 and 191,889.76

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Solution

The fourth proportional to 671,657.87, 1,007,619.77 and 191,889.76 is: 287,872.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,657.87 : 1,007,619.77 = 191,889.76 : x
  2. Step 2: Convert to fraction form
    671,657.87/1,007,619.77 = 191,889.76/x
  3. Step 3: Cross multiply
    671,657.87x = 1,007,619.77 × 191,889.76
  4. Step 4: Simplify right side
    671,657.87x = 193,351,914,607.14
  5. Step 5: Solve for x
    x = 193,351,914,607.14/671,657.87
  6. Step 6: Final answer
    x = 287,872.62

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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.