Home / 791,245.51-1,091,917.47-428,678.59

Finding the Fourth Proportional to 791,245.51, 1,091,917.47 and 428,678.59

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Solution

The fourth proportional to 791,245.51, 1,091,917.47 and 428,678.59 is: 591,575.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,245.51 : 1,091,917.47 = 428,678.59 : x
  2. Step 2: Convert to fraction form
    791,245.51/1,091,917.47 = 428,678.59/x
  3. Step 3: Cross multiply
    791,245.51x = 1,091,917.47 × 428,678.59
  4. Step 4: Simplify right side
    791,245.51x = 468,081,641,435.97
  5. Step 5: Solve for x
    x = 468,081,641,435.97/791,245.51
  6. Step 6: Final answer
    x = 591,575.73

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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.