Home / 1,109,469.94-1,664,299.58-389,748.74

Finding the Fourth Proportional to 1,109,469.94, 1,664,299.58 and 389,748.74

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Solution

The fourth proportional to 1,109,469.94, 1,664,299.58 and 389,748.74 is: 584,656.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,469.94 : 1,664,299.58 = 389,748.74 : x
  2. Step 2: Convert to fraction form
    1,109,469.94/1,664,299.58 = 389,748.74/x
  3. Step 3: Cross multiply
    1,109,469.94x = 1,664,299.58 × 389,748.74
  4. Step 4: Simplify right side
    1,109,469.94x = 648,658,662,338.79
  5. Step 5: Solve for x
    x = 648,658,662,338.79/1,109,469.94
  6. Step 6: Final answer
    x = 584,656.37

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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.