Home / 915,719.82-1,373,813.13-284,639.10

Finding the Fourth Proportional to 915,719.82, 1,373,813.13 and 284,639.10

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Solution

The fourth proportional to 915,719.82, 1,373,813.13 and 284,639.10 is: 427,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,719.82 : 1,373,813.13 = 284,639.10 : x
  2. Step 2: Convert to fraction form
    915,719.82/1,373,813.13 = 284,639.10/x
  3. Step 3: Cross multiply
    915,719.82x = 1,373,813.13 × 284,639.10
  4. Step 4: Simplify right side
    915,719.82x = 391,040,932,891.38
  5. Step 5: Solve for x
    x = 391,040,932,891.38/915,719.82
  6. Step 6: Final answer
    x = 427,031.20

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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.