Home / 859,941.80-1,288,138.80-503,876.60

Finding the Fourth Proportional to 859,941.80, 1,288,138.80 and 503,876.60

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Solution

The fourth proportional to 859,941.80, 1,288,138.80 and 503,876.60 is: 754,775.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,941.80 : 1,288,138.80 = 503,876.60 : x
  2. Step 2: Convert to fraction form
    859,941.80/1,288,138.80 = 503,876.60/x
  3. Step 3: Cross multiply
    859,941.80x = 1,288,138.80 × 503,876.60
  4. Step 4: Simplify right side
    859,941.80x = 649,062,998,872.08
  5. Step 5: Solve for x
    x = 649,062,998,872.08/859,941.80
  6. Step 6: Final answer
    x = 754,775.50

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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.