Home / 389,387.64-584,077.62-123,148.20

Finding the Fourth Proportional to 389,387.64, 584,077.62 and 123,148.20

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Solution

The fourth proportional to 389,387.64, 584,077.62 and 123,148.20 is: 184,721.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,387.64 : 584,077.62 = 123,148.20 : x
  2. Step 2: Convert to fraction form
    389,387.64/584,077.62 = 123,148.20/x
  3. Step 3: Cross multiply
    389,387.64x = 584,077.62 × 123,148.20
  4. Step 4: Simplify right side
    389,387.64x = 71,928,107,563.28
  5. Step 5: Solve for x
    x = 71,928,107,563.28/389,387.64
  6. Step 6: Final answer
    x = 184,721.09

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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.