Home / 946,643.17-1,418,912.97-721,260.57

Finding the Fourth Proportional to 946,643.17, 1,418,912.97 and 721,260.57

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Solution

The fourth proportional to 946,643.17, 1,418,912.97 and 721,260.57 is: 1,081,089.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,643.17 : 1,418,912.97 = 721,260.57 : x
  2. Step 2: Convert to fraction form
    946,643.17/1,418,912.97 = 721,260.57/x
  3. Step 3: Cross multiply
    946,643.17x = 1,418,912.97 × 721,260.57
  4. Step 4: Simplify right side
    946,643.17x = 1,023,405,982,000.96
  5. Step 5: Solve for x
    x = 1,023,405,982,000.96/946,643.17
  6. Step 6: Final answer
    x = 1,081,089.49

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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.