Home / 1,805,286.65-2,491,315.26-989,472.47

Finding the Fourth Proportional to 1,805,286.65, 2,491,315.26 and 989,472.47

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Solution

The fourth proportional to 1,805,286.65, 2,491,315.26 and 989,472.47 is: 1,365,482.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805,286.65 : 2,491,315.26 = 989,472.47 : x
  2. Step 2: Convert to fraction form
    1,805,286.65/2,491,315.26 = 989,472.47/x
  3. Step 3: Cross multiply
    1,805,286.65x = 2,491,315.26 × 989,472.47
  4. Step 4: Simplify right side
    1,805,286.65x = 2,465,087,863,860.89
  5. Step 5: Solve for x
    x = 2,465,087,863,860.89/1,805,286.65
  6. Step 6: Final answer
    x = 1,365,482.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.