Home / 1,326,991.02-1,990,487.91-329,719.02

Finding the Fourth Proportional to 1,326,991.02, 1,990,487.91 and 329,719.02

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Solution

The fourth proportional to 1,326,991.02, 1,990,487.91 and 329,719.02 is: 494,578.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,991.02 : 1,990,487.91 = 329,719.02 : x
  2. Step 2: Convert to fraction form
    1,326,991.02/1,990,487.91 = 329,719.02/x
  3. Step 3: Cross multiply
    1,326,991.02x = 1,990,487.91 × 329,719.02
  4. Step 4: Simplify right side
    1,326,991.02x = 656,301,723,007.05
  5. Step 5: Solve for x
    x = 656,301,723,007.05/1,326,991.02
  6. Step 6: Final answer
    x = 494,578.87

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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.