Home / 1,318,313.30-1,819,321.36-745,319.30

Finding the Fourth Proportional to 1,318,313.30, 1,819,321.36 and 745,319.30

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Solution

The fourth proportional to 1,318,313.30, 1,819,321.36 and 745,319.30 is: 1,028,568.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,313.30 : 1,819,321.36 = 745,319.30 : x
  2. Step 2: Convert to fraction form
    1,318,313.30/1,819,321.36 = 745,319.30/x
  3. Step 3: Cross multiply
    1,318,313.30x = 1,819,321.36 × 745,319.30
  4. Step 4: Simplify right side
    1,318,313.30x = 1,355,975,325,195.25
  5. Step 5: Solve for x
    x = 1,355,975,325,195.25/1,318,313.30
  6. Step 6: Final answer
    x = 1,028,568.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.