Home / 772,608.28-1,066,201.92-428,468.80

Finding the Fourth Proportional to 772,608.28, 1,066,201.92 and 428,468.80

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Solution

The fourth proportional to 772,608.28, 1,066,201.92 and 428,468.80 is: 591,288.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,608.28 : 1,066,201.92 = 428,468.80 : x
  2. Step 2: Convert to fraction form
    772,608.28/1,066,201.92 = 428,468.80/x
  3. Step 3: Cross multiply
    772,608.28x = 1,066,201.92 × 428,468.80
  4. Step 4: Simplify right side
    772,608.28x = 456,834,257,220.10
  5. Step 5: Solve for x
    x = 456,834,257,220.10/772,608.28
  6. Step 6: Final answer
    x = 591,288.33

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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.