Home / 1,213,230.80-1,819,846.20-414,392.60

Finding the Fourth Proportional to 1,213,230.80, 1,819,846.20 and 414,392.60

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Solution

The fourth proportional to 1,213,230.80, 1,819,846.20 and 414,392.60 is: 621,588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,230.80 : 1,819,846.20 = 414,392.60 : x
  2. Step 2: Convert to fraction form
    1,213,230.80/1,819,846.20 = 414,392.60/x
  3. Step 3: Cross multiply
    1,213,230.80x = 1,819,846.20 × 414,392.60
  4. Step 4: Simplify right side
    1,213,230.80x = 754,130,798,418.12
  5. Step 5: Solve for x
    x = 754,130,798,418.12/1,213,230.80
  6. Step 6: Final answer
    x = 621,588.90

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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.