Home / 772,768.41-1,066,474.94-428,714.43

Finding the Fourth Proportional to 772,768.41, 1,066,474.94 and 428,714.43

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Solution

The fourth proportional to 772,768.41, 1,066,474.94 and 428,714.43 is: 591,656.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,768.41 : 1,066,474.94 = 428,714.43 : x
  2. Step 2: Convert to fraction form
    772,768.41/1,066,474.94 = 428,714.43/x
  3. Step 3: Cross multiply
    772,768.41x = 1,066,474.94 × 428,714.43
  4. Step 4: Simplify right side
    772,768.41x = 457,213,193,867.81
  5. Step 5: Solve for x
    x = 457,213,193,867.81/772,768.41
  6. Step 6: Final answer
    x = 591,656.16

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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.