Home / 772,470.98-1,066,120.26-428,383.44

Finding the Fourth Proportional to 772,470.98, 1,066,120.26 and 428,383.44

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Solution

The fourth proportional to 772,470.98, 1,066,120.26 and 428,383.44 is: 591,230.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,470.98 : 1,066,120.26 = 428,383.44 : x
  2. Step 2: Convert to fraction form
    772,470.98/1,066,120.26 = 428,383.44/x
  3. Step 3: Cross multiply
    772,470.98x = 1,066,120.26 × 428,383.44
  4. Step 4: Simplify right side
    772,470.98x = 456,708,264,432.49
  5. Step 5: Solve for x
    x = 456,708,264,432.49/772,470.98
  6. Step 6: Final answer
    x = 591,230.32

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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.