Home / 1,343,373.20-2,012,435.40-809,307.80

Finding the Fourth Proportional to 1,343,373.20, 2,012,435.40 and 809,307.80

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Solution

The fourth proportional to 1,343,373.20, 2,012,435.40 and 809,307.80 is: 1,212,380.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,373.20 : 2,012,435.40 = 809,307.80 : x
  2. Step 2: Convert to fraction form
    1,343,373.20/2,012,435.40 = 809,307.80/x
  3. Step 3: Cross multiply
    1,343,373.20x = 2,012,435.40 × 809,307.80
  4. Step 4: Simplify right side
    1,343,373.20x = 1,628,679,666,216.12
  5. Step 5: Solve for x
    x = 1,628,679,666,216.12/1,343,373.20
  6. Step 6: Final answer
    x = 1,212,380.64

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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.