Home / 870,917.80-1,306,376.80-271,930.24

Finding the Fourth Proportional to 870,917.80, 1,306,376.80 and 271,930.24

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Solution

The fourth proportional to 870,917.80, 1,306,376.80 and 271,930.24 is: 407,895.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,917.80 : 1,306,376.80 = 271,930.24 : x
  2. Step 2: Convert to fraction form
    870,917.80/1,306,376.80 = 271,930.24/x
  3. Step 3: Cross multiply
    870,917.80x = 1,306,376.80 × 271,930.24
  4. Step 4: Simplify right side
    870,917.80x = 355,243,356,754.43
  5. Step 5: Solve for x
    x = 355,243,356,754.43/870,917.80
  6. Step 6: Final answer
    x = 407,895.39

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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.