Home / 389,612.20-584,418.30-336,468.10

Finding the Fourth Proportional to 389,612.20, 584,418.30 and 336,468.10

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Solution

The fourth proportional to 389,612.20, 584,418.30 and 336,468.10 is: 504,702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,612.20 : 584,418.30 = 336,468.10 : x
  2. Step 2: Convert to fraction form
    389,612.20/584,418.30 = 336,468.10/x
  3. Step 3: Cross multiply
    389,612.20x = 584,418.30 × 336,468.10
  4. Step 4: Simplify right side
    389,612.20x = 196,638,115,006.23
  5. Step 5: Solve for x
    x = 196,638,115,006.23/389,612.20
  6. Step 6: Final answer
    x = 504,702.15

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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.