Home / 807,515.70-1,211,273.55-508,917.30

Finding the Fourth Proportional to 807,515.70, 1,211,273.55 and 508,917.30

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Solution

The fourth proportional to 807,515.70, 1,211,273.55 and 508,917.30 is: 763,375.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,515.70 : 1,211,273.55 = 508,917.30 : x
  2. Step 2: Convert to fraction form
    807,515.70/1,211,273.55 = 508,917.30/x
  3. Step 3: Cross multiply
    807,515.70x = 1,211,273.55 × 508,917.30
  4. Step 4: Simplify right side
    807,515.70x = 616,438,064,627.42
  5. Step 5: Solve for x
    x = 616,438,064,627.42/807,515.70
  6. Step 6: Final answer
    x = 763,375.95

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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.