Home / 870,405.56-1,304,558.42-449,451.96

Finding the Fourth Proportional to 870,405.56, 1,304,558.42 and 449,451.96

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Solution

The fourth proportional to 870,405.56, 1,304,558.42 and 449,451.96 is: 673,635.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,405.56 : 1,304,558.42 = 449,451.96 : x
  2. Step 2: Convert to fraction form
    870,405.56/1,304,558.42 = 449,451.96/x
  3. Step 3: Cross multiply
    870,405.56x = 1,304,558.42 × 449,451.96
  4. Step 4: Simplify right side
    870,405.56x = 586,336,338,803.50
  5. Step 5: Solve for x
    x = 586,336,338,803.50/870,405.56
  6. Step 6: Final answer
    x = 673,635.79

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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.