Home / 1,292,103.82-1,783,085.43-719,144.20

Finding the Fourth Proportional to 1,292,103.82, 1,783,085.43 and 719,144.20

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Solution

The fourth proportional to 1,292,103.82, 1,783,085.43 and 719,144.20 is: 992,409.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,103.82 : 1,783,085.43 = 719,144.20 : x
  2. Step 2: Convert to fraction form
    1,292,103.82/1,783,085.43 = 719,144.20/x
  3. Step 3: Cross multiply
    1,292,103.82x = 1,783,085.43 × 719,144.20
  4. Step 4: Simplify right side
    1,292,103.82x = 1,282,295,545,089.01
  5. Step 5: Solve for x
    x = 1,282,295,545,089.01/1,292,103.82
  6. Step 6: Final answer
    x = 992,409.07

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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.