Home / 807,388.64-1,211,076.87-208,298.87

Finding the Fourth Proportional to 807,388.64, 1,211,076.87 and 208,298.87

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Solution

The fourth proportional to 807,388.64, 1,211,076.87 and 208,298.87 is: 312,446.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,388.64 : 1,211,076.87 = 208,298.87 : x
  2. Step 2: Convert to fraction form
    807,388.64/1,211,076.87 = 208,298.87/x
  3. Step 3: Cross multiply
    807,388.64x = 1,211,076.87 × 208,298.87
  4. Step 4: Simplify right side
    807,388.64x = 252,265,937,448.75
  5. Step 5: Solve for x
    x = 252,265,937,448.75/807,388.64
  6. Step 6: Final answer
    x = 312,446.73

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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.