Home / 728,098.89-1,004,749.07-422,188.18

Finding the Fourth Proportional to 728,098.89, 1,004,749.07 and 422,188.18

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Solution

The fourth proportional to 728,098.89, 1,004,749.07 and 422,188.18 is: 582,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,098.89 : 1,004,749.07 = 422,188.18 : x
  2. Step 2: Convert to fraction form
    728,098.89/1,004,749.07 = 422,188.18/x
  3. Step 3: Cross multiply
    728,098.89x = 1,004,749.07 × 422,188.18
  4. Step 4: Simplify right side
    728,098.89x = 424,193,183,436.30
  5. Step 5: Solve for x
    x = 424,193,183,436.30/728,098.89
  6. Step 6: Final answer
    x = 582,603.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.