Home / 389,829.60-584,744.40-109,394.40

Finding the Fourth Proportional to 389,829.60, 584,744.40 and 109,394.40

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Solution

The fourth proportional to 389,829.60, 584,744.40 and 109,394.40 is: 164,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,829.60 : 584,744.40 = 109,394.40 : x
  2. Step 2: Convert to fraction form
    389,829.60/584,744.40 = 109,394.40/x
  3. Step 3: Cross multiply
    389,829.60x = 584,744.40 × 109,394.40
  4. Step 4: Simplify right side
    389,829.60x = 63,967,762,791.36
  5. Step 5: Solve for x
    x = 63,967,762,791.36/389,829.60
  6. Step 6: Final answer
    x = 164,091.60

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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.