Home / 389,329.94-583,991.39-123,090.54

Finding the Fourth Proportional to 389,329.94, 583,991.39 and 123,090.54

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Solution

The fourth proportional to 389,329.94, 583,991.39 and 123,090.54 is: 184,634.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,329.94 : 583,991.39 = 123,090.54 : x
  2. Step 2: Convert to fraction form
    389,329.94/583,991.39 = 123,090.54/x
  3. Step 3: Cross multiply
    389,329.94x = 583,991.39 × 123,090.54
  4. Step 4: Simplify right side
    389,329.94x = 71,883,814,935.00
  5. Step 5: Solve for x
    x = 71,883,814,935.00/389,329.94
  6. Step 6: Final answer
    x = 184,634.70

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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.