Home / 791,126.42-1,091,759.76-428,550.32

Finding the Fourth Proportional to 791,126.42, 1,091,759.76 and 428,550.32

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Solution

The fourth proportional to 791,126.42, 1,091,759.76 and 428,550.32 is: 591,402.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,126.42 : 1,091,759.76 = 428,550.32 : x
  2. Step 2: Convert to fraction form
    791,126.42/1,091,759.76 = 428,550.32/x
  3. Step 3: Cross multiply
    791,126.42x = 1,091,759.76 × 428,550.32
  4. Step 4: Simplify right side
    791,126.42x = 467,873,994,511.12
  5. Step 5: Solve for x
    x = 467,873,994,511.12/791,126.42
  6. Step 6: Final answer
    x = 591,402.31

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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.