Home / 655,121.20-904,087.37-356,775.10

Finding the Fourth Proportional to 655,121.20, 904,087.37 and 356,775.10

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Solution

The fourth proportional to 655,121.20, 904,087.37 and 356,775.10 is: 492,360.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,121.20 : 904,087.37 = 356,775.10 : x
  2. Step 2: Convert to fraction form
    655,121.20/904,087.37 = 356,775.10/x
  3. Step 3: Cross multiply
    655,121.20x = 904,087.37 × 356,775.10
  4. Step 4: Simplify right side
    655,121.20x = 322,555,861,840.49
  5. Step 5: Solve for x
    x = 322,555,861,840.49/655,121.20
  6. Step 6: Final answer
    x = 492,360.59

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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.