Home / 1,109,469.63-1,664,299.11-389,748.43

Finding the Fourth Proportional to 1,109,469.63, 1,664,299.11 and 389,748.43

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Solution

The fourth proportional to 1,109,469.63, 1,664,299.11 and 389,748.43 is: 584,655.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,469.63 : 1,664,299.11 = 389,748.43 : x
  2. Step 2: Convert to fraction form
    1,109,469.63/1,664,299.11 = 389,748.43/x
  3. Step 3: Cross multiply
    1,109,469.63x = 1,664,299.11 × 389,748.43
  4. Step 4: Simplify right side
    1,109,469.63x = 648,657,959,550.59
  5. Step 5: Solve for x
    x = 648,657,959,550.59/1,109,469.63
  6. Step 6: Final answer
    x = 584,655.90

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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.