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Finding the Fourth Proportional to 1,609,757.57, 2,220,981.01 and 964,942.49

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Solution

The fourth proportional to 1,609,757.57, 2,220,981.01 and 964,942.49 is: 1,331,330.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609,757.57 : 2,220,981.01 = 964,942.49 : x
  2. Step 2: Convert to fraction form
    1,609,757.57/2,220,981.01 = 964,942.49/x
  3. Step 3: Cross multiply
    1,609,757.57x = 2,220,981.01 × 964,942.49
  4. Step 4: Simplify right side
    1,609,757.57x = 2,143,118,949,172.21
  5. Step 5: Solve for x
    x = 2,143,118,949,172.21/1,609,757.57
  6. Step 6: Final answer
    x = 1,331,330.25

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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.