Home / 807,502.62-1,211,258.51-208,422.82

Finding the Fourth Proportional to 807,502.62, 1,211,258.51 and 208,422.82

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Solution

The fourth proportional to 807,502.62, 1,211,258.51 and 208,422.82 is: 312,635.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,502.62 : 1,211,258.51 = 208,422.82 : x
  2. Step 2: Convert to fraction form
    807,502.62/1,211,258.51 = 208,422.82/x
  3. Step 3: Cross multiply
    807,502.62x = 1,211,258.51 × 208,422.82
  4. Step 4: Simplify right side
    807,502.62x = 252,453,915,656.74
  5. Step 5: Solve for x
    x = 252,453,915,656.74/807,502.62
  6. Step 6: Final answer
    x = 312,635.41

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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.