Home / 780,221.44-1,170,212.32-247,673.28

Finding the Fourth Proportional to 780,221.44, 1,170,212.32 and 247,673.28

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Solution

The fourth proportional to 780,221.44, 1,170,212.32 and 247,673.28 is: 371,471.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,221.44 : 1,170,212.32 = 247,673.28 : x
  2. Step 2: Convert to fraction form
    780,221.44/1,170,212.32 = 247,673.28/x
  3. Step 3: Cross multiply
    780,221.44x = 1,170,212.32 × 247,673.28
  4. Step 4: Simplify right side
    780,221.44x = 289,830,323,590.81
  5. Step 5: Solve for x
    x = 289,830,323,590.81/780,221.44
  6. Step 6: Final answer
    x = 371,471.88

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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.