Home / 1,212,611.90-1,816,293.45-650,990.30

Finding the Fourth Proportional to 1,212,611.90, 1,816,293.45 and 650,990.30

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Solution

The fourth proportional to 1,212,611.90, 1,816,293.45 and 650,990.30 is: 975,076.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,611.90 : 1,816,293.45 = 650,990.30 : x
  2. Step 2: Convert to fraction form
    1,212,611.90/1,816,293.45 = 650,990.30/x
  3. Step 3: Cross multiply
    1,212,611.90x = 1,816,293.45 × 650,990.30
  4. Step 4: Simplify right side
    1,212,611.90x = 1,182,389,417,903.54
  5. Step 5: Solve for x
    x = 1,182,389,417,903.54/1,212,611.90
  6. Step 6: Final answer
    x = 975,076.54

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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.