Home / 1,133,672.55-1,702,352.03-820,328.55

Finding the Fourth Proportional to 1,133,672.55, 1,702,352.03 and 820,328.55

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Solution

The fourth proportional to 1,133,672.55, 1,702,352.03 and 820,328.55 is: 1,231,826.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,672.55 : 1,702,352.03 = 820,328.55 : x
  2. Step 2: Convert to fraction form
    1,133,672.55/1,702,352.03 = 820,328.55/x
  3. Step 3: Cross multiply
    1,133,672.55x = 1,702,352.03 × 820,328.55
  4. Step 4: Simplify right side
    1,133,672.55x = 1,396,487,968,257.81
  5. Step 5: Solve for x
    x = 1,396,487,968,257.81/1,133,672.55
  6. Step 6: Final answer
    x = 1,231,826.57

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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.