Home / 718,093.80-1,077,140.70-418,912.20

Finding the Fourth Proportional to 718,093.80, 1,077,140.70 and 418,912.20

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Solution

The fourth proportional to 718,093.80, 1,077,140.70 and 418,912.20 is: 628,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,093.80 : 1,077,140.70 = 418,912.20 : x
  2. Step 2: Convert to fraction form
    718,093.80/1,077,140.70 = 418,912.20/x
  3. Step 3: Cross multiply
    718,093.80x = 1,077,140.70 × 418,912.20
  4. Step 4: Simplify right side
    718,093.80x = 451,227,380,346.54
  5. Step 5: Solve for x
    x = 451,227,380,346.54/718,093.80
  6. Step 6: Final answer
    x = 628,368.30

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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.