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Finding the Fourth Proportional to 1,972,246.20, 2,958,664.95 and 835,006.20

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Solution

The fourth proportional to 1,972,246.20, 2,958,664.95 and 835,006.20 is: 1,252,634.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972,246.20 : 2,958,664.95 = 835,006.20 : x
  2. Step 2: Convert to fraction form
    1,972,246.20/2,958,664.95 = 835,006.20/x
  3. Step 3: Cross multiply
    1,972,246.20x = 2,958,664.95 × 835,006.20
  4. Step 4: Simplify right side
    1,972,246.20x = 2,470,503,576,972.69
  5. Step 5: Solve for x
    x = 2,470,503,576,972.69/1,972,246.20
  6. Step 6: Final answer
    x = 1,252,634.47

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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.