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Finding the Fourth Proportional to 329,612.40, 494,418.60 and 323,780.40

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Solution

The fourth proportional to 329,612.40, 494,418.60 and 323,780.40 is: 485,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,612.40 : 494,418.60 = 323,780.40 : x
  2. Step 2: Convert to fraction form
    329,612.40/494,418.60 = 323,780.40/x
  3. Step 3: Cross multiply
    329,612.40x = 494,418.60 × 323,780.40
  4. Step 4: Simplify right side
    329,612.40x = 160,083,052,075.44
  5. Step 5: Solve for x
    x = 160,083,052,075.44/329,612.40
  6. Step 6: Final answer
    x = 485,670.60

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1.5x scale

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.