Home / 1,343,379.20-2,012,444.40-809,313.80

Finding the Fourth Proportional to 1,343,379.20, 2,012,444.40 and 809,313.80

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Solution

The fourth proportional to 1,343,379.20, 2,012,444.40 and 809,313.80 is: 1,212,389.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,379.20 : 2,012,444.40 = 809,313.80 : x
  2. Step 2: Convert to fraction form
    1,343,379.20/2,012,444.40 = 809,313.80/x
  3. Step 3: Cross multiply
    1,343,379.20x = 2,012,444.40 × 809,313.80
  4. Step 4: Simplify right side
    1,343,379.20x = 1,628,699,024,652.72
  5. Step 5: Solve for x
    x = 1,628,699,024,652.72/1,343,379.20
  6. Step 6: Final answer
    x = 1,212,389.64

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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.