Home / 780,220.63-1,170,669.02-275,142.49

Finding the Fourth Proportional to 780,220.63, 1,170,669.02 and 275,142.49

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Solution

The fourth proportional to 780,220.63, 1,170,669.02 and 275,142.49 is: 412,832.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,220.63 : 1,170,669.02 = 275,142.49 : x
  2. Step 2: Convert to fraction form
    780,220.63/1,170,669.02 = 275,142.49/x
  3. Step 3: Cross multiply
    780,220.63x = 1,170,669.02 × 275,142.49
  4. Step 4: Simplify right side
    780,220.63x = 322,100,789,128.66
  5. Step 5: Solve for x
    x = 322,100,789,128.66/780,220.63
  6. Step 6: Final answer
    x = 412,832.96

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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.