Home / 389,320.08-583,976.48-123,080.63

Finding the Fourth Proportional to 389,320.08, 583,976.48 and 123,080.63

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Solution

The fourth proportional to 389,320.08, 583,976.48 and 123,080.63 is: 184,619.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,320.08 : 583,976.48 = 123,080.63 : x
  2. Step 2: Convert to fraction form
    389,320.08/583,976.48 = 123,080.63/x
  3. Step 3: Cross multiply
    389,320.08x = 583,976.48 × 123,080.63
  4. Step 4: Simplify right side
    389,320.08x = 71,876,189,528.30
  5. Step 5: Solve for x
    x = 71,876,189,528.30/389,320.08
  6. Step 6: Final answer
    x = 184,619.79

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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.