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Finding the Fourth Proportional to 445,501.40, 668,252.10 and 327,403.40

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Solution

The fourth proportional to 445,501.40, 668,252.10 and 327,403.40 is: 491,105.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,501.40 : 668,252.10 = 327,403.40 : x
  2. Step 2: Convert to fraction form
    445,501.40/668,252.10 = 327,403.40/x
  3. Step 3: Cross multiply
    445,501.40x = 668,252.10 × 327,403.40
  4. Step 4: Simplify right side
    445,501.40x = 218,788,009,597.14
  5. Step 5: Solve for x
    x = 218,788,009,597.14/445,501.40
  6. Step 6: Final answer
    x = 491,105.10

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Similar ratio
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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.