Home / 791,134.38-1,091,762.82-428,557.32

Finding the Fourth Proportional to 791,134.38, 1,091,762.82 and 428,557.32

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Solution

The fourth proportional to 791,134.38, 1,091,762.82 and 428,557.32 is: 591,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,134.38 : 1,091,762.82 = 428,557.32 : x
  2. Step 2: Convert to fraction form
    791,134.38/1,091,762.82 = 428,557.32/x
  3. Step 3: Cross multiply
    791,134.38x = 1,091,762.82 × 428,557.32
  4. Step 4: Simplify right side
    791,134.38x = 467,882,948,214.84
  5. Step 5: Solve for x
    x = 467,882,948,214.84/791,134.38
  6. Step 6: Final answer
    x = 591,407.68

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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.