Home / 389,329.88-583,991.10-123,090.35

Finding the Fourth Proportional to 389,329.88, 583,991.10 and 123,090.35

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Solution

The fourth proportional to 389,329.88, 583,991.10 and 123,090.35 is: 184,634.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,329.88 : 583,991.10 = 123,090.35 : x
  2. Step 2: Convert to fraction form
    389,329.88/583,991.10 = 123,090.35/x
  3. Step 3: Cross multiply
    389,329.88x = 583,991.10 × 123,090.35
  4. Step 4: Simplify right side
    389,329.88x = 71,883,665,975.93
  5. Step 5: Solve for x
    x = 71,883,665,975.93/389,329.88
  6. Step 6: Final answer
    x = 184,634.34

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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.