Home / 1,786,263.11-2,679,396.75-489,426.47

Finding the Fourth Proportional to 1,786,263.11, 2,679,396.75 and 489,426.47

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Solution

The fourth proportional to 1,786,263.11, 2,679,396.75 and 489,426.47 is: 734,140.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,263.11 : 2,679,396.75 = 489,426.47 : x
  2. Step 2: Convert to fraction form
    1,786,263.11/2,679,396.75 = 489,426.47/x
  3. Step 3: Cross multiply
    1,786,263.11x = 2,679,396.75 × 489,426.47
  4. Step 4: Simplify right side
    1,786,263.11x = 1,311,367,693,081.97
  5. Step 5: Solve for x
    x = 1,311,367,693,081.97/1,786,263.11
  6. Step 6: Final answer
    x = 734,140.28

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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.