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Finding the Fourth Proportional to 327,113.60, 490,670.40 and 309,617.60

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Solution

The fourth proportional to 327,113.60, 490,670.40 and 309,617.60 is: 464,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,113.60 : 490,670.40 = 309,617.60 : x
  2. Step 2: Convert to fraction form
    327,113.60/490,670.40 = 309,617.60/x
  3. Step 3: Cross multiply
    327,113.60x = 490,670.40 × 309,617.60
  4. Step 4: Simplify right side
    327,113.60x = 151,920,191,639.04
  5. Step 5: Solve for x
    x = 151,920,191,639.04/327,113.60
  6. Step 6: Final answer
    x = 464,426.40

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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.