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Finding the Fourth Proportional to 493,877.88, 681,548.58 and 279,087.48

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Solution

The fourth proportional to 493,877.88, 681,548.58 and 279,087.48 is: 385,139.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,877.88 : 681,548.58 = 279,087.48 : x
  2. Step 2: Convert to fraction form
    493,877.88/681,548.58 = 279,087.48/x
  3. Step 3: Cross multiply
    493,877.88x = 681,548.58 × 279,087.48
  4. Step 4: Simplify right side
    493,877.88x = 190,211,675,689.78
  5. Step 5: Solve for x
    x = 190,211,675,689.78/493,877.88
  6. Step 6: Final answer
    x = 385,139.09

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1.5x scale

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.