Home / 1,286,686.71-1,930,046.49-340,049.25

Finding the Fourth Proportional to 1,286,686.71, 1,930,046.49 and 340,049.25

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Solution

The fourth proportional to 1,286,686.71, 1,930,046.49 and 340,049.25 is: 510,078.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,686.71 : 1,930,046.49 = 340,049.25 : x
  2. Step 2: Convert to fraction form
    1,286,686.71/1,930,046.49 = 340,049.25/x
  3. Step 3: Cross multiply
    1,286,686.71x = 1,930,046.49 × 340,049.25
  4. Step 4: Simplify right side
    1,286,686.71x = 656,310,861,389.63
  5. Step 5: Solve for x
    x = 656,310,861,389.63/1,286,686.71
  6. Step 6: Final answer
    x = 510,078.22

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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.