Home / 828,896.88-1,243,345.32-267,931.38

Finding the Fourth Proportional to 828,896.88, 1,243,345.32 and 267,931.38

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Solution

The fourth proportional to 828,896.88, 1,243,345.32 and 267,931.38 is: 401,897.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,896.88 : 1,243,345.32 = 267,931.38 : x
  2. Step 2: Convert to fraction form
    828,896.88/1,243,345.32 = 267,931.38/x
  3. Step 3: Cross multiply
    828,896.88x = 1,243,345.32 × 267,931.38
  4. Step 4: Simplify right side
    828,896.88x = 333,131,227,404.14
  5. Step 5: Solve for x
    x = 333,131,227,404.14/828,896.88
  6. Step 6: Final answer
    x = 401,897.07

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Double scale
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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.