Home / 550,876.20-760,222.72-309,177.20

Finding the Fourth Proportional to 550,876.20, 760,222.72 and 309,177.20

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Solution

The fourth proportional to 550,876.20, 760,222.72 and 309,177.20 is: 426,672.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,876.20 : 760,222.72 = 309,177.20 : x
  2. Step 2: Convert to fraction form
    550,876.20/760,222.72 = 309,177.20/x
  3. Step 3: Cross multiply
    550,876.20x = 760,222.72 × 309,177.20
  4. Step 4: Simplify right side
    550,876.20x = 235,043,531,945.98
  5. Step 5: Solve for x
    x = 235,043,531,945.98/550,876.20
  6. Step 6: Final answer
    x = 426,672.15

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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.