Home / 870,308.06-1,305,460.32-491,056.64

Finding the Fourth Proportional to 870,308.06, 1,305,460.32 and 491,056.64

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Solution

The fourth proportional to 870,308.06, 1,305,460.32 and 491,056.64 is: 736,583.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,308.06 : 1,305,460.32 = 491,056.64 : x
  2. Step 2: Convert to fraction form
    870,308.06/1,305,460.32 = 491,056.64/x
  3. Step 3: Cross multiply
    870,308.06x = 1,305,460.32 × 491,056.64
  4. Step 4: Simplify right side
    870,308.06x = 641,054,958,392.53
  5. Step 5: Solve for x
    x = 641,054,958,392.53/870,308.06
  6. Step 6: Final answer
    x = 736,583.96

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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.