Home / 2,617,644.81-3,926,352.98-820,487.25

Finding the Fourth Proportional to 2,617,644.81, 3,926,352.98 and 820,487.25

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Solution

The fourth proportional to 2,617,644.81, 3,926,352.98 and 820,487.25 is: 1,230,695.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617,644.81 : 3,926,352.98 = 820,487.25 : x
  2. Step 2: Convert to fraction form
    2,617,644.81/3,926,352.98 = 820,487.25/x
  3. Step 3: Cross multiply
    2,617,644.81x = 3,926,352.98 × 820,487.25
  4. Step 4: Simplify right side
    2,617,644.81x = 3,221,522,554,987.07
  5. Step 5: Solve for x
    x = 3,221,522,554,987.07/2,617,644.81
  6. Step 6: Final answer
    x = 1,230,695.07

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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.