Home / 1,092,643.80-1,638,188.10-418,464.60

Finding the Fourth Proportional to 1,092,643.80, 1,638,188.10 and 418,464.60

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Solution

The fourth proportional to 1,092,643.80, 1,638,188.10 and 418,464.60 is: 627,399.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,643.80 : 1,638,188.10 = 418,464.60 : x
  2. Step 2: Convert to fraction form
    1,092,643.80/1,638,188.10 = 418,464.60/x
  3. Step 3: Cross multiply
    1,092,643.80x = 1,638,188.10 × 418,464.60
  4. Step 4: Simplify right side
    1,092,643.80x = 685,523,727,991.26
  5. Step 5: Solve for x
    x = 685,523,727,991.26/1,092,643.80
  6. Step 6: Final answer
    x = 627,399.09

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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.