Home / 905,171.72-1,357,932.64-306,230.46

Finding the Fourth Proportional to 905,171.72, 1,357,932.64 and 306,230.46

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Solution

The fourth proportional to 905,171.72, 1,357,932.64 and 306,230.46 is: 459,404.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,171.72 : 1,357,932.64 = 306,230.46 : x
  2. Step 2: Convert to fraction form
    905,171.72/1,357,932.64 = 306,230.46/x
  3. Step 3: Cross multiply
    905,171.72x = 1,357,932.64 × 306,230.46
  4. Step 4: Simplify right side
    905,171.72x = 415,840,336,996.21
  5. Step 5: Solve for x
    x = 415,840,336,996.21/905,171.72
  6. Step 6: Final answer
    x = 459,404.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.