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Finding the Fourth Proportional to 348,739.40, 523,109.10 and 327,744.20

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Solution

The fourth proportional to 348,739.40, 523,109.10 and 327,744.20 is: 491,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,739.40 : 523,109.10 = 327,744.20 : x
  2. Step 2: Convert to fraction form
    348,739.40/523,109.10 = 327,744.20/x
  3. Step 3: Cross multiply
    348,739.40x = 523,109.10 × 327,744.20
  4. Step 4: Simplify right side
    348,739.40x = 171,445,973,492.22
  5. Step 5: Solve for x
    x = 171,445,973,492.22/348,739.40
  6. Step 6: Final answer
    x = 491,616.30

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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.