Home / 780,186.33-1,169,947.19-306,539.44

Finding the Fourth Proportional to 780,186.33, 1,169,947.19 and 306,539.44

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Solution

The fourth proportional to 780,186.33, 1,169,947.19 and 306,539.44 is: 459,678.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,186.33 : 1,169,947.19 = 306,539.44 : x
  2. Step 2: Convert to fraction form
    780,186.33/1,169,947.19 = 306,539.44/x
  3. Step 3: Cross multiply
    780,186.33x = 1,169,947.19 × 306,539.44
  4. Step 4: Simplify right side
    780,186.33x = 358,634,954,293.65
  5. Step 5: Solve for x
    x = 358,634,954,293.65/780,186.33
  6. Step 6: Final answer
    x = 459,678.59

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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.