Home / 384,976.80-576,590.40-243,259.20

Finding the Fourth Proportional to 384,976.80, 576,590.40 and 243,259.20

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Solution

The fourth proportional to 384,976.80, 576,590.40 and 243,259.20 is: 364,336.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,976.80 : 576,590.40 = 243,259.20 : x
  2. Step 2: Convert to fraction form
    384,976.80/576,590.40 = 243,259.20/x
  3. Step 3: Cross multiply
    384,976.80x = 576,590.40 × 243,259.20
  4. Step 4: Simplify right side
    384,976.80x = 140,260,919,431.68
  5. Step 5: Solve for x
    x = 140,260,919,431.68/384,976.80
  6. Step 6: Final answer
    x = 364,336.03

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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.