Home / 1,440,491.43-1,987,707.63-859,606.92

Finding the Fourth Proportional to 1,440,491.43, 1,987,707.63 and 859,606.92

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Solution

The fourth proportional to 1,440,491.43, 1,987,707.63 and 859,606.92 is: 1,186,155.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,491.43 : 1,987,707.63 = 859,606.92 : x
  2. Step 2: Convert to fraction form
    1,440,491.43/1,987,707.63 = 859,606.92/x
  3. Step 3: Cross multiply
    1,440,491.43x = 1,987,707.63 × 859,606.92
  4. Step 4: Simplify right side
    1,440,491.43x = 1,708,647,233,684.80
  5. Step 5: Solve for x
    x = 1,708,647,233,684.80/1,440,491.43
  6. Step 6: Final answer
    x = 1,186,155.78

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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.