Home / 780,324.66-1,170,486.98-219,359.16

Finding the Fourth Proportional to 780,324.66, 1,170,486.98 and 219,359.16

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Solution

The fourth proportional to 780,324.66, 1,170,486.98 and 219,359.16 is: 329,038.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,324.66 : 1,170,486.98 = 219,359.16 : x
  2. Step 2: Convert to fraction form
    780,324.66/1,170,486.98 = 219,359.16/x
  3. Step 3: Cross multiply
    780,324.66x = 1,170,486.98 × 219,359.16
  4. Step 4: Simplify right side
    780,324.66x = 256,757,040,723.74
  5. Step 5: Solve for x
    x = 256,757,040,723.74/780,324.66
  6. Step 6: Final answer
    x = 329,038.74

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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.