Home / 780,325.16-1,170,487.73-219,359.66

Finding the Fourth Proportional to 780,325.16, 1,170,487.73 and 219,359.66

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Solution

The fourth proportional to 780,325.16, 1,170,487.73 and 219,359.66 is: 329,039.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,325.16 : 1,170,487.73 = 219,359.66 : x
  2. Step 2: Convert to fraction form
    780,325.16/1,170,487.73 = 219,359.66/x
  3. Step 3: Cross multiply
    780,325.16x = 1,170,487.73 × 219,359.66
  4. Step 4: Simplify right side
    780,325.16x = 256,757,785,182.93
  5. Step 5: Solve for x
    x = 256,757,785,182.93/780,325.16
  6. Step 6: Final answer
    x = 329,039.48

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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.