Home / 657,997.20-988,032.60-378,061.20

Finding the Fourth Proportional to 657,997.20, 988,032.60 and 378,061.20

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Solution

The fourth proportional to 657,997.20, 988,032.60 and 378,061.20 is: 567,687.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,997.20 : 988,032.60 = 378,061.20 : x
  2. Step 2: Convert to fraction form
    657,997.20/988,032.60 = 378,061.20/x
  3. Step 3: Cross multiply
    657,997.20x = 988,032.60 × 378,061.20
  4. Step 4: Simplify right side
    657,997.20x = 373,536,790,395.12
  5. Step 5: Solve for x
    x = 373,536,790,395.12/657,997.20
  6. Step 6: Final answer
    x = 567,687.51

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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.