Home / 1,928,812.11-2,887,542.57-1,287,525.23

Finding the Fourth Proportional to 1,928,812.11, 2,887,542.57 and 1,287,525.23

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Solution

The fourth proportional to 1,928,812.11, 2,887,542.57 and 1,287,525.23 is: 1,927,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,812.11 : 2,887,542.57 = 1,287,525.23 : x
  2. Step 2: Convert to fraction form
    1,928,812.11/2,887,542.57 = 1,287,525.23/x
  3. Step 3: Cross multiply
    1,928,812.11x = 2,887,542.57 × 1,287,525.23
  4. Step 4: Simplify right side
    1,928,812.11x = 3,717,783,897,136.33
  5. Step 5: Solve for x
    x = 3,717,783,897,136.33/1,928,812.11
  6. Step 6: Final answer
    x = 1,927,499.25

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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.