Home / 1,805,804.85-2,491,872.39-1,031,328.78

Finding the Fourth Proportional to 1,805,804.85, 2,491,872.39 and 1,031,328.78

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Solution

The fourth proportional to 1,805,804.85, 2,491,872.39 and 1,031,328.78 is: 1,423,154.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805,804.85 : 2,491,872.39 = 1,031,328.78 : x
  2. Step 2: Convert to fraction form
    1,805,804.85/2,491,872.39 = 1,031,328.78/x
  3. Step 3: Cross multiply
    1,805,804.85x = 2,491,872.39 × 1,031,328.78
  4. Step 4: Simplify right side
    1,805,804.85x = 2,569,939,711,894.38
  5. Step 5: Solve for x
    x = 2,569,939,711,894.38/1,805,804.85
  6. Step 6: Final answer
    x = 1,423,154.73

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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.