Home / 1,318,074.92-1,819,021.83-745,168.40

Finding the Fourth Proportional to 1,318,074.92, 1,819,021.83 and 745,168.40

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Solution

The fourth proportional to 1,318,074.92, 1,819,021.83 and 745,168.40 is: 1,028,376.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,074.92 : 1,819,021.83 = 745,168.40 : x
  2. Step 2: Convert to fraction form
    1,318,074.92/1,819,021.83 = 745,168.40/x
  3. Step 3: Cross multiply
    1,318,074.92x = 1,819,021.83 × 745,168.40
  4. Step 4: Simplify right side
    1,318,074.92x = 1,355,477,586,626.17
  5. Step 5: Solve for x
    x = 1,355,477,586,626.17/1,318,074.92
  6. Step 6: Final answer
    x = 1,028,376.74

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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.