Home / 1,235,911.50-1,844,600.85-1,155,198.78

Finding the Fourth Proportional to 1,235,911.50, 1,844,600.85 and 1,155,198.78

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Solution

The fourth proportional to 1,235,911.50, 1,844,600.85 and 1,155,198.78 is: 1,724,136.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,911.50 : 1,844,600.85 = 1,155,198.78 : x
  2. Step 2: Convert to fraction form
    1,235,911.50/1,844,600.85 = 1,155,198.78/x
  3. Step 3: Cross multiply
    1,235,911.50x = 1,844,600.85 × 1,155,198.78
  4. Step 4: Simplify right side
    1,235,911.50x = 2,130,880,651,506.96
  5. Step 5: Solve for x
    x = 2,130,880,651,506.96/1,235,911.50
  6. Step 6: Final answer
    x = 1,724,136.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.