Home / 680,490.52-1,020,049.61-427,951.48

Finding the Fourth Proportional to 680,490.52, 1,020,049.61 and 427,951.48

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Solution

The fourth proportional to 680,490.52, 1,020,049.61 and 427,951.48 is: 641,495.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,490.52 : 1,020,049.61 = 427,951.48 : x
  2. Step 2: Convert to fraction form
    680,490.52/1,020,049.61 = 427,951.48/x
  3. Step 3: Cross multiply
    680,490.52x = 1,020,049.61 × 427,951.48
  4. Step 4: Simplify right side
    680,490.52x = 436,531,734,626.75
  5. Step 5: Solve for x
    x = 436,531,734,626.75/680,490.52
  6. Step 6: Final answer
    x = 641,495.69

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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.