Home / 1,330,500.60-1,995,750.90-770,628.60

Finding the Fourth Proportional to 1,330,500.60, 1,995,750.90 and 770,628.60

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Solution

The fourth proportional to 1,330,500.60, 1,995,750.90 and 770,628.60 is: 1,155,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,500.60 : 1,995,750.90 = 770,628.60 : x
  2. Step 2: Convert to fraction form
    1,330,500.60/1,995,750.90 = 770,628.60/x
  3. Step 3: Cross multiply
    1,330,500.60x = 1,995,750.90 × 770,628.60
  4. Step 4: Simplify right side
    1,330,500.60x = 1,537,982,722,015.74
  5. Step 5: Solve for x
    x = 1,537,982,722,015.74/1,330,500.60
  6. Step 6: Final answer
    x = 1,155,942.90

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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.