Home / 1,379,483.35-2,069,312.49-432,891.43

Finding the Fourth Proportional to 1,379,483.35, 2,069,312.49 and 432,891.43

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Solution

The fourth proportional to 1,379,483.35, 2,069,312.49 and 432,891.43 is: 649,364.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,483.35 : 2,069,312.49 = 432,891.43 : x
  2. Step 2: Convert to fraction form
    1,379,483.35/2,069,312.49 = 432,891.43/x
  3. Step 3: Cross multiply
    1,379,483.35x = 2,069,312.49 × 432,891.43
  4. Step 4: Simplify right side
    1,379,483.35x = 895,787,642,912.96
  5. Step 5: Solve for x
    x = 895,787,642,912.96/1,379,483.35
  6. Step 6: Final answer
    x = 649,364.59

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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.