Home / 558,390.36-770,575.20-303,742.56

Finding the Fourth Proportional to 558,390.36, 770,575.20 and 303,742.56

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Solution

The fourth proportional to 558,390.36, 770,575.20 and 303,742.56 is: 419,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,390.36 : 770,575.20 = 303,742.56 : x
  2. Step 2: Convert to fraction form
    558,390.36/770,575.20 = 303,742.56/x
  3. Step 3: Cross multiply
    558,390.36x = 770,575.20 × 303,742.56
  4. Step 4: Simplify right side
    558,390.36x = 234,056,483,920.51
  5. Step 5: Solve for x
    x = 234,056,483,920.51/558,390.36
  6. Step 6: Final answer
    x = 419,162.83

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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.