Home / 1,213,183.61-1,818,391.66-757,984.15

Finding the Fourth Proportional to 1,213,183.61, 1,818,391.66 and 757,984.15

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Solution

The fourth proportional to 1,213,183.61, 1,818,391.66 and 757,984.15 is: 1,136,111.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,183.61 : 1,818,391.66 = 757,984.15 : x
  2. Step 2: Convert to fraction form
    1,213,183.61/1,818,391.66 = 757,984.15/x
  3. Step 3: Cross multiply
    1,213,183.61x = 1,818,391.66 × 757,984.15
  4. Step 4: Simplify right side
    1,213,183.61x = 1,378,312,056,772.19
  5. Step 5: Solve for x
    x = 1,378,312,056,772.19/1,213,183.61
  6. Step 6: Final answer
    x = 1,136,111.67

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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.