Home / 911,305.20-1,365,645.60-405,452.10

Finding the Fourth Proportional to 911,305.20, 1,365,645.60 and 405,452.10

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Solution

The fourth proportional to 911,305.20, 1,365,645.60 and 405,452.10 is: 607,594.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,305.20 : 1,365,645.60 = 405,452.10 : x
  2. Step 2: Convert to fraction form
    911,305.20/1,365,645.60 = 405,452.10/x
  3. Step 3: Cross multiply
    911,305.20x = 1,365,645.60 × 405,452.10
  4. Step 4: Simplify right side
    911,305.20x = 553,703,876,375.76
  5. Step 5: Solve for x
    x = 553,703,876,375.76/911,305.20
  6. Step 6: Final answer
    x = 607,594.33

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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.