Home / 702,241.80-1,052,919.81-386,920.14

Finding the Fourth Proportional to 702,241.80, 1,052,919.81 and 386,920.14

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Solution

The fourth proportional to 702,241.80, 1,052,919.81 and 386,920.14 is: 580,136.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,241.80 : 1,052,919.81 = 386,920.14 : x
  2. Step 2: Convert to fraction form
    702,241.80/1,052,919.81 = 386,920.14/x
  3. Step 3: Cross multiply
    702,241.80x = 1,052,919.81 × 386,920.14
  4. Step 4: Simplify right side
    702,241.80x = 407,395,880,293.97
  5. Step 5: Solve for x
    x = 407,395,880,293.97/702,241.80
  6. Step 6: Final answer
    x = 580,136.19

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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.