Home / 1,379,345.20-2,069,020.20-432,788.56

Finding the Fourth Proportional to 1,379,345.20, 2,069,020.20 and 432,788.56

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Solution

The fourth proportional to 1,379,345.20, 2,069,020.20 and 432,788.56 is: 649,183.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,345.20 : 2,069,020.20 = 432,788.56 : x
  2. Step 2: Convert to fraction form
    1,379,345.20/2,069,020.20 = 432,788.56/x
  3. Step 3: Cross multiply
    1,379,345.20x = 2,069,020.20 × 432,788.56
  4. Step 4: Simplify right side
    1,379,345.20x = 895,448,272,968.91
  5. Step 5: Solve for x
    x = 895,448,272,968.91/1,379,345.20
  6. Step 6: Final answer
    x = 649,183.59

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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.