Home / 490,742.46-736,112.57-153,808.79

Finding the Fourth Proportional to 490,742.46, 736,112.57 and 153,808.79

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Solution

The fourth proportional to 490,742.46, 736,112.57 and 153,808.79 is: 230,712.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,742.46 : 736,112.57 = 153,808.79 : x
  2. Step 2: Convert to fraction form
    490,742.46/736,112.57 = 153,808.79/x
  3. Step 3: Cross multiply
    490,742.46x = 736,112.57 × 153,808.79
  4. Step 4: Simplify right side
    490,742.46x = 113,220,579,245.88
  5. Step 5: Solve for x
    x = 113,220,579,245.88/490,742.46
  6. Step 6: Final answer
    x = 230,712.82

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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.