Home / 870,735.87-1,306,057.68-271,628.37

Finding the Fourth Proportional to 870,735.87, 1,306,057.68 and 271,628.37

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Solution

The fourth proportional to 870,735.87, 1,306,057.68 and 271,628.37 is: 407,428.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,735.87 : 1,306,057.68 = 271,628.37 : x
  2. Step 2: Convert to fraction form
    870,735.87/1,306,057.68 = 271,628.37/x
  3. Step 3: Cross multiply
    870,735.87x = 1,306,057.68 × 271,628.37
  4. Step 4: Simplify right side
    870,735.87x = 354,762,318,744.38
  5. Step 5: Solve for x
    x = 354,762,318,744.38/870,735.87
  6. Step 6: Final answer
    x = 407,428.17

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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.