Home / 558,609.02-770,960.20-313,619.66

Finding the Fourth Proportional to 558,609.02, 770,960.20 and 313,619.66

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Solution

The fourth proportional to 558,609.02, 770,960.20 and 313,619.66 is: 432,839.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,609.02 : 770,960.20 = 313,619.66 : x
  2. Step 2: Convert to fraction form
    558,609.02/770,960.20 = 313,619.66/x
  3. Step 3: Cross multiply
    558,609.02x = 770,960.20 × 313,619.66
  4. Step 4: Simplify right side
    558,609.02x = 241,788,275,797.53
  5. Step 5: Solve for x
    x = 241,788,275,797.53/558,609.02
  6. Step 6: Final answer
    x = 432,839.91

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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.