Home / 1,221,303.80-1,831,955.70-512,132.60

Finding the Fourth Proportional to 1,221,303.80, 1,831,955.70 and 512,132.60

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Solution

The fourth proportional to 1,221,303.80, 1,831,955.70 and 512,132.60 is: 768,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,303.80 : 1,831,955.70 = 512,132.60 : x
  2. Step 2: Convert to fraction form
    1,221,303.80/1,831,955.70 = 512,132.60/x
  3. Step 3: Cross multiply
    1,221,303.80x = 1,831,955.70 × 512,132.60
  4. Step 4: Simplify right side
    1,221,303.80x = 938,204,235,725.82
  5. Step 5: Solve for x
    x = 938,204,235,725.82/1,221,303.80
  6. Step 6: Final answer
    x = 768,198.90

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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.