Home / 1,213,812.70-1,822,216.65-764,532.70

Finding the Fourth Proportional to 1,213,812.70, 1,822,216.65 and 764,532.70

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Solution

The fourth proportional to 1,213,812.70, 1,822,216.65 and 764,532.70 is: 1,147,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,812.70 : 1,822,216.65 = 764,532.70 : x
  2. Step 2: Convert to fraction form
    1,213,812.70/1,822,216.65 = 764,532.70/x
  3. Step 3: Cross multiply
    1,213,812.70x = 1,822,216.65 × 764,532.70
  4. Step 4: Simplify right side
    1,213,812.70x = 1,393,144,215,409.45
  5. Step 5: Solve for x
    x = 1,393,144,215,409.45/1,213,812.70
  6. Step 6: Final answer
    x = 1,147,742.33

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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.