Home / 1,221,684.40-1,833,241.20-511,652.80

Finding the Fourth Proportional to 1,221,684.40, 1,833,241.20 and 511,652.80

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Solution

The fourth proportional to 1,221,684.40, 1,833,241.20 and 511,652.80 is: 767,778.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,684.40 : 1,833,241.20 = 511,652.80 : x
  2. Step 2: Convert to fraction form
    1,221,684.40/1,833,241.20 = 511,652.80/x
  3. Step 3: Cross multiply
    1,221,684.40x = 1,833,241.20 × 511,652.80
  4. Step 4: Simplify right side
    1,221,684.40x = 937,982,993,055.36
  5. Step 5: Solve for x
    x = 937,982,993,055.36/1,221,684.40
  6. Step 6: Final answer
    x = 767,778.48

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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.