Home / 780,383.48-1,170,913-275,305.56

Finding the Fourth Proportional to 780,383.48, 1,170,913 and 275,305.56

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Solution

The fourth proportional to 780,383.48, 1,170,913 and 275,305.56 is: 413,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,383.48 : 1,170,913 = 275,305.56 : x
  2. Step 2: Convert to fraction form
    780,383.48/1,170,913 = 275,305.56/x
  3. Step 3: Cross multiply
    780,383.48x = 1,170,913 × 275,305.56
  4. Step 4: Simplify right side
    780,383.48x = 322,358,859,176.28
  5. Step 5: Solve for x
    x = 322,358,859,176.28/780,383.48
  6. Step 6: Final answer
    x = 413,077.50

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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.