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Finding the Fourth Proportional to 348,613.40, 522,920.10 and 327,618.20

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Solution

The fourth proportional to 348,613.40, 522,920.10 and 327,618.20 is: 491,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,613.40 : 522,920.10 = 327,618.20 : x
  2. Step 2: Convert to fraction form
    348,613.40/522,920.10 = 327,618.20/x
  3. Step 3: Cross multiply
    348,613.40x = 522,920.10 × 327,618.20
  4. Step 4: Simplify right side
    348,613.40x = 171,318,141,905.82
  5. Step 5: Solve for x
    x = 171,318,141,905.82/348,613.40
  6. Step 6: Final answer
    x = 491,427.30

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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.