Home / 542,731.28-749,015.28-301,091.84

Finding the Fourth Proportional to 542,731.28, 749,015.28 and 301,091.84

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Solution

The fourth proportional to 542,731.28, 749,015.28 and 301,091.84 is: 415,532.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,731.28 : 749,015.28 = 301,091.84 : x
  2. Step 2: Convert to fraction form
    542,731.28/749,015.28 = 301,091.84/x
  3. Step 3: Cross multiply
    542,731.28x = 749,015.28 × 301,091.84
  4. Step 4: Simplify right side
    542,731.28x = 225,522,388,843.32
  5. Step 5: Solve for x
    x = 225,522,388,843.32/542,731.28
  6. Step 6: Final answer
    x = 415,532.32

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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.