Home / 807,338.20-1,211,007.30-508,739.80

Finding the Fourth Proportional to 807,338.20, 1,211,007.30 and 508,739.80

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Solution

The fourth proportional to 807,338.20, 1,211,007.30 and 508,739.80 is: 763,109.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,338.20 : 1,211,007.30 = 508,739.80 : x
  2. Step 2: Convert to fraction form
    807,338.20/1,211,007.30 = 508,739.80/x
  3. Step 3: Cross multiply
    807,338.20x = 1,211,007.30 × 508,739.80
  4. Step 4: Simplify right side
    807,338.20x = 616,087,611,600.54
  5. Step 5: Solve for x
    x = 616,087,611,600.54/807,338.20
  6. Step 6: Final answer
    x = 763,109.70

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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.