Home / 772,691.10-1,066,377.56-428,637.96

Finding the Fourth Proportional to 772,691.10, 1,066,377.56 and 428,637.96

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Solution

The fourth proportional to 772,691.10, 1,066,377.56 and 428,637.96 is: 591,555.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,691.10 : 1,066,377.56 = 428,637.96 : x
  2. Step 2: Convert to fraction form
    772,691.10/1,066,377.56 = 428,637.96/x
  3. Step 3: Cross multiply
    772,691.10x = 1,066,377.56 × 428,637.96
  4. Step 4: Simplify right side
    772,691.10x = 457,089,897,634.84
  5. Step 5: Solve for x
    x = 457,089,897,634.84/772,691.10
  6. Step 6: Final answer
    x = 591,555.79

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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.