Home / 1,343,381.70-2,012,448.15-809,316.30

Finding the Fourth Proportional to 1,343,381.70, 2,012,448.15 and 809,316.30

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Solution

The fourth proportional to 1,343,381.70, 2,012,448.15 and 809,316.30 is: 1,212,393.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,381.70 : 2,012,448.15 = 809,316.30 : x
  2. Step 2: Convert to fraction form
    1,343,381.70/2,012,448.15 = 809,316.30/x
  3. Step 3: Cross multiply
    1,343,381.70x = 2,012,448.15 × 809,316.30
  4. Step 4: Simplify right side
    1,343,381.70x = 1,628,707,090,699.85
  5. Step 5: Solve for x
    x = 1,628,707,090,699.85/1,343,381.70
  6. Step 6: Final answer
    x = 1,212,393.39

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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.