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Finding the Fourth Proportional to 494,420.40, 741,922.20 and 326,426.40

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Solution

The fourth proportional to 494,420.40, 741,922.20 and 326,426.40 is: 489,832.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,420.40 : 741,922.20 = 326,426.40 : x
  2. Step 2: Convert to fraction form
    494,420.40/741,922.20 = 326,426.40/x
  3. Step 3: Cross multiply
    494,420.40x = 741,922.20 × 326,426.40
  4. Step 4: Simplify right side
    494,420.40x = 242,182,992,826.08
  5. Step 5: Solve for x
    x = 242,182,992,826.08/494,420.40
  6. Step 6: Final answer
    x = 489,832.12

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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.