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Finding the Fourth Proportional to 828,891, 1,243,336.50 and 267,925.50

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Solution

The fourth proportional to 828,891, 1,243,336.50 and 267,925.50 is: 401,888.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,891 : 1,243,336.50 = 267,925.50 : x
  2. Step 2: Convert to fraction form
    828,891/1,243,336.50 = 267,925.50/x
  3. Step 3: Cross multiply
    828,891x = 1,243,336.50 × 267,925.50
  4. Step 4: Simplify right side
    828,891x = 333,121,553,430.75
  5. Step 5: Solve for x
    x = 333,121,553,430.75/828,891
  6. Step 6: Final answer
    x = 401,888.25

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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.