Home / 1,109,513.52-1,664,365.04-389,792.70

Finding the Fourth Proportional to 1,109,513.52, 1,664,365.04 and 389,792.70

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Solution

The fourth proportional to 1,109,513.52, 1,664,365.04 and 389,792.70 is: 584,722.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,513.52 : 1,664,365.04 = 389,792.70 : x
  2. Step 2: Convert to fraction form
    1,109,513.52/1,664,365.04 = 389,792.70/x
  3. Step 3: Cross multiply
    1,109,513.52x = 1,664,365.04 × 389,792.70
  4. Step 4: Simplify right side
    1,109,513.52x = 648,757,340,778.25
  5. Step 5: Solve for x
    x = 648,757,340,778.25/1,109,513.52
  6. Step 6: Final answer
    x = 584,722.34

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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.