Home / 1,286,690.71-1,930,052.49-340,053.25

Finding the Fourth Proportional to 1,286,690.71, 1,930,052.49 and 340,053.25

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Solution

The fourth proportional to 1,286,690.71, 1,930,052.49 and 340,053.25 is: 510,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,690.71 : 1,930,052.49 = 340,053.25 : x
  2. Step 2: Convert to fraction form
    1,286,690.71/1,930,052.49 = 340,053.25/x
  3. Step 3: Cross multiply
    1,286,690.71x = 1,930,052.49 × 340,053.25
  4. Step 4: Simplify right side
    1,286,690.71x = 656,320,621,895.09
  5. Step 5: Solve for x
    x = 656,320,621,895.09/1,286,690.71
  6. Step 6: Final answer
    x = 510,084.22

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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.