Home / 905,039.12-1,357,558.08-231,120.56

Finding the Fourth Proportional to 905,039.12, 1,357,558.08 and 231,120.56

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Solution

The fourth proportional to 905,039.12, 1,357,558.08 and 231,120.56 is: 346,680.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,039.12 : 1,357,558.08 = 231,120.56 : x
  2. Step 2: Convert to fraction form
    905,039.12/1,357,558.08 = 231,120.56/x
  3. Step 3: Cross multiply
    905,039.12x = 1,357,558.08 × 231,120.56
  4. Step 4: Simplify right side
    905,039.12x = 313,759,583,682.13
  5. Step 5: Solve for x
    x = 313,759,583,682.13/905,039.12
  6. Step 6: Final answer
    x = 346,680.69

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Similar ratio
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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.