Home / 728,664.90-1,092,608.55-307,464.90

Finding the Fourth Proportional to 728,664.90, 1,092,608.55 and 307,464.90

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Solution

The fourth proportional to 728,664.90, 1,092,608.55 and 307,464.90 is: 461,033.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,664.90 : 1,092,608.55 = 307,464.90 : x
  2. Step 2: Convert to fraction form
    728,664.90/1,092,608.55 = 307,464.90/x
  3. Step 3: Cross multiply
    728,664.90x = 1,092,608.55 × 307,464.90
  4. Step 4: Simplify right side
    728,664.90x = 335,938,778,564.90
  5. Step 5: Solve for x
    x = 335,938,778,564.90/728,664.90
  6. Step 6: Final answer
    x = 461,033.29

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1.5x scale

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.