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Finding the Fourth Proportional to 1,504,644.40, 2,256,966.60 and 990,918.10

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Solution

The fourth proportional to 1,504,644.40, 2,256,966.60 and 990,918.10 is: 1,486,377.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,504,644.40 : 2,256,966.60 = 990,918.10 : x
  2. Step 2: Convert to fraction form
    1,504,644.40/2,256,966.60 = 990,918.10/x
  3. Step 3: Cross multiply
    1,504,644.40x = 2,256,966.60 × 990,918.10
  4. Step 4: Simplify right side
    1,504,644.40x = 2,236,469,055,035.46
  5. Step 5: Solve for x
    x = 2,236,469,055,035.46/1,504,644.40
  6. Step 6: Final answer
    x = 1,486,377.15

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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.