Home / 1,092,608.80-1,638,135.60-418,429.60

Finding the Fourth Proportional to 1,092,608.80, 1,638,135.60 and 418,429.60

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Solution

The fourth proportional to 1,092,608.80, 1,638,135.60 and 418,429.60 is: 627,346.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,608.80 : 1,638,135.60 = 418,429.60 : x
  2. Step 2: Convert to fraction form
    1,092,608.80/1,638,135.60 = 418,429.60/x
  3. Step 3: Cross multiply
    1,092,608.80x = 1,638,135.60 × 418,429.60
  4. Step 4: Simplify right side
    1,092,608.80x = 685,444,423,853.76
  5. Step 5: Solve for x
    x = 685,444,423,853.76/1,092,608.80
  6. Step 6: Final answer
    x = 627,346.61

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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.