Home / 890,627.32-1,335,811.38-259,371.64

Finding the Fourth Proportional to 890,627.32, 1,335,811.38 and 259,371.64

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Solution

The fourth proportional to 890,627.32, 1,335,811.38 and 259,371.64 is: 389,019.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,627.32 : 1,335,811.38 = 259,371.64 : x
  2. Step 2: Convert to fraction form
    890,627.32/1,335,811.38 = 259,371.64/x
  3. Step 3: Cross multiply
    890,627.32x = 1,335,811.38 × 259,371.64
  4. Step 4: Simplify right side
    890,627.32x = 346,471,588,361.26
  5. Step 5: Solve for x
    x = 346,471,588,361.26/890,627.32
  6. Step 6: Final answer
    x = 389,019.72

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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.