Home / 1,207,136.71-1,809,443.89-886,812.29

Finding the Fourth Proportional to 1,207,136.71, 1,809,443.89 and 886,812.29

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Solution

The fourth proportional to 1,207,136.71, 1,809,443.89 and 886,812.29 is: 1,329,291.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,136.71 : 1,809,443.89 = 886,812.29 : x
  2. Step 2: Convert to fraction form
    1,207,136.71/1,809,443.89 = 886,812.29/x
  3. Step 3: Cross multiply
    1,207,136.71x = 1,809,443.89 × 886,812.29
  4. Step 4: Simplify right side
    1,207,136.71x = 1,604,637,079,717.41
  5. Step 5: Solve for x
    x = 1,604,637,079,717.41/1,207,136.71
  6. Step 6: Final answer
    x = 1,329,291.92

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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.