Home / 768,008.08-1,059,851.82-428,476.44

Finding the Fourth Proportional to 768,008.08, 1,059,851.82 and 428,476.44

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Solution

The fourth proportional to 768,008.08, 1,059,851.82 and 428,476.44 is: 591,297.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,008.08 : 1,059,851.82 = 428,476.44 : x
  2. Step 2: Convert to fraction form
    768,008.08/1,059,851.82 = 428,476.44/x
  3. Step 3: Cross multiply
    768,008.08x = 1,059,851.82 × 428,476.44
  4. Step 4: Simplify right side
    768,008.08x = 454,121,534,761.12
  5. Step 5: Solve for x
    x = 454,121,534,761.12/768,008.08
  6. Step 6: Final answer
    x = 591,297.86

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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.