Home / 1,109,348.64-1,664,238.72-426,185.72

Finding the Fourth Proportional to 1,109,348.64, 1,664,238.72 and 426,185.72

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Solution

The fourth proportional to 1,109,348.64, 1,664,238.72 and 426,185.72 is: 639,361.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,348.64 : 1,664,238.72 = 426,185.72 : x
  2. Step 2: Convert to fraction form
    1,109,348.64/1,664,238.72 = 426,185.72/x
  3. Step 3: Cross multiply
    1,109,348.64x = 1,664,238.72 × 426,185.72
  4. Step 4: Simplify right side
    1,109,348.64x = 709,274,777,135.08
  5. Step 5: Solve for x
    x = 709,274,777,135.08/1,109,348.64
  6. Step 6: Final answer
    x = 639,361.47

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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.