Home / 1,331,738.88-1,997,666.64-385,205.28

Finding the Fourth Proportional to 1,331,738.88, 1,997,666.64 and 385,205.28

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Solution

The fourth proportional to 1,331,738.88, 1,997,666.64 and 385,205.28 is: 577,824.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,738.88 : 1,997,666.64 = 385,205.28 : x
  2. Step 2: Convert to fraction form
    1,331,738.88/1,997,666.64 = 385,205.28/x
  3. Step 3: Cross multiply
    1,331,738.88x = 1,997,666.64 × 385,205.28
  4. Step 4: Simplify right side
    1,331,738.88x = 769,511,737,407.86
  5. Step 5: Solve for x
    x = 769,511,737,407.86/1,331,738.88
  6. Step 6: Final answer
    x = 577,824.79

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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.