Home / 558,179.75-770,507.15-395,685.57

Finding the Fourth Proportional to 558,179.75, 770,507.15 and 395,685.57

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Solution

The fourth proportional to 558,179.75, 770,507.15 and 395,685.57 is: 546,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,179.75 : 770,507.15 = 395,685.57 : x
  2. Step 2: Convert to fraction form
    558,179.75/770,507.15 = 395,685.57/x
  3. Step 3: Cross multiply
    558,179.75x = 770,507.15 × 395,685.57
  4. Step 4: Simplify right side
    558,179.75x = 304,878,560,836.83
  5. Step 5: Solve for x
    x = 304,878,560,836.83/558,179.75
  6. Step 6: Final answer
    x = 546,201.40

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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.