Home / 791,086.18-1,091,699.16-428,509

Finding the Fourth Proportional to 791,086.18, 1,091,699.16 and 428,509

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Solution

The fourth proportional to 791,086.18, 1,091,699.16 and 428,509 is: 591,342.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,086.18 : 1,091,699.16 = 428,509 : x
  2. Step 2: Convert to fraction form
    791,086.18/1,091,699.16 = 428,509/x
  3. Step 3: Cross multiply
    791,086.18x = 1,091,699.16 × 428,509
  4. Step 4: Simplify right side
    791,086.18x = 467,802,915,352.44
  5. Step 5: Solve for x
    x = 467,802,915,352.44/791,086.18
  6. Step 6: Final answer
    x = 591,342.55

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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.