Home / 807,385.64-1,211,072.38-208,295.87

Finding the Fourth Proportional to 807,385.64, 1,211,072.38 and 208,295.87

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Solution

The fourth proportional to 807,385.64, 1,211,072.38 and 208,295.87 is: 312,442.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,385.64 : 1,211,072.38 = 208,295.87 : x
  2. Step 2: Convert to fraction form
    807,385.64/1,211,072.38 = 208,295.87/x
  3. Step 3: Cross multiply
    807,385.64x = 1,211,072.38 × 208,295.87
  4. Step 4: Simplify right side
    807,385.64x = 252,261,368,448.97
  5. Step 5: Solve for x
    x = 252,261,368,448.97/807,385.64
  6. Step 6: Final answer
    x = 312,442.23

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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.