Home / 389,822.57-584,783.06-137,043.64

Finding the Fourth Proportional to 389,822.57, 584,783.06 and 137,043.64

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Solution

The fourth proportional to 389,822.57, 584,783.06 and 137,043.64 is: 205,582.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,822.57 : 584,783.06 = 137,043.64 : x
  2. Step 2: Convert to fraction form
    389,822.57/584,783.06 = 137,043.64/x
  3. Step 3: Cross multiply
    389,822.57x = 584,783.06 × 137,043.64
  4. Step 4: Simplify right side
    389,822.57x = 80,140,797,005.56
  5. Step 5: Solve for x
    x = 80,140,797,005.56/389,822.57
  6. Step 6: Final answer
    x = 205,582.76

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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.