Home / 389,604.24-584,439.60-136,862.64

Finding the Fourth Proportional to 389,604.24, 584,439.60 and 136,862.64

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Solution

The fourth proportional to 389,604.24, 584,439.60 and 136,862.64 is: 205,305.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,604.24 : 584,439.60 = 136,862.64 : x
  2. Step 2: Convert to fraction form
    389,604.24/584,439.60 = 136,862.64/x
  3. Step 3: Cross multiply
    389,604.24x = 584,439.60 × 136,862.64
  4. Step 4: Simplify right side
    389,604.24x = 79,987,946,576.54
  5. Step 5: Solve for x
    x = 79,987,946,576.54/389,604.24
  6. Step 6: Final answer
    x = 205,305.64

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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.