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Finding the Fourth Proportional to 1,752,576, 2,628,600.32 and 490,240

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Solution

The fourth proportional to 1,752,576, 2,628,600.32 and 490,240 is: 735,286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752,576 : 2,628,600.32 = 490,240 : x
  2. Step 2: Convert to fraction form
    1,752,576/2,628,600.32 = 490,240/x
  3. Step 3: Cross multiply
    1,752,576x = 2,628,600.32 × 490,240
  4. Step 4: Simplify right side
    1,752,576x = 1,288,645,020,876.80
  5. Step 5: Solve for x
    x = 1,288,645,020,876.80/1,752,576
  6. Step 6: Final answer
    x = 735,286.24

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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.