Home / 1,431,489-2,147,246.46-434,217

Finding the Fourth Proportional to 1,431,489, 2,147,246.46 and 434,217

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Solution

The fourth proportional to 1,431,489, 2,147,246.46 and 434,217 is: 651,329.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,489 : 2,147,246.46 = 434,217 : x
  2. Step 2: Convert to fraction form
    1,431,489/2,147,246.46 = 434,217/x
  3. Step 3: Cross multiply
    1,431,489x = 2,147,246.46 × 434,217
  4. Step 4: Simplify right side
    1,431,489x = 932,370,916,121.82
  5. Step 5: Solve for x
    x = 932,370,916,121.82/1,431,489
  6. Step 6: Final answer
    x = 651,329.43

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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.