Home / 1,491,421.20-2,237,131.80-545,470.80

Finding the Fourth Proportional to 1,491,421.20, 2,237,131.80 and 545,470.80

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Solution

The fourth proportional to 1,491,421.20, 2,237,131.80 and 545,470.80 is: 818,206.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,421.20 : 2,237,131.80 = 545,470.80 : x
  2. Step 2: Convert to fraction form
    1,491,421.20/2,237,131.80 = 545,470.80/x
  3. Step 3: Cross multiply
    1,491,421.20x = 2,237,131.80 × 545,470.80
  4. Step 4: Simplify right side
    1,491,421.20x = 1,220,290,072,651.44
  5. Step 5: Solve for x
    x = 1,220,290,072,651.44/1,491,421.20
  6. Step 6: Final answer
    x = 818,206.20

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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.