Home / 1,428,114.68-1,970,732.92-783,521.56

Finding the Fourth Proportional to 1,428,114.68, 1,970,732.92 and 783,521.56

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Solution

The fourth proportional to 1,428,114.68, 1,970,732.92 and 783,521.56 is: 1,081,223.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,114.68 : 1,970,732.92 = 783,521.56 : x
  2. Step 2: Convert to fraction form
    1,428,114.68/1,970,732.92 = 783,521.56/x
  3. Step 3: Cross multiply
    1,428,114.68x = 1,970,732.92 × 783,521.56
  4. Step 4: Simplify right side
    1,428,114.68x = 1,544,111,731,821.76
  5. Step 5: Solve for x
    x = 1,544,111,731,821.76/1,428,114.68
  6. Step 6: Final answer
    x = 1,081,223.91

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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.