Home / 780,326.78-1,170,601.65-240,628.64

Finding the Fourth Proportional to 780,326.78, 1,170,601.65 and 240,628.64

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Solution

The fourth proportional to 780,326.78, 1,170,601.65 and 240,628.64 is: 360,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,326.78 : 1,170,601.65 = 240,628.64 : x
  2. Step 2: Convert to fraction form
    780,326.78/1,170,601.65 = 240,628.64/x
  3. Step 3: Cross multiply
    780,326.78x = 1,170,601.65 × 240,628.64
  4. Step 4: Simplify right side
    780,326.78x = 281,680,277,168.25
  5. Step 5: Solve for x
    x = 281,680,277,168.25/780,326.78
  6. Step 6: Final answer
    x = 360,977.33

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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.