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Finding the Fourth Proportional to 578,589.89, 798,448.79 and 323,945.33

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Solution

The fourth proportional to 578,589.89, 798,448.79 and 323,945.33 is: 447,041.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,589.89 : 798,448.79 = 323,945.33 : x
  2. Step 2: Convert to fraction form
    578,589.89/798,448.79 = 323,945.33/x
  3. Step 3: Cross multiply
    578,589.89x = 798,448.79 × 323,945.33
  4. Step 4: Simplify right side
    578,589.89x = 258,653,753,582.27
  5. Step 5: Solve for x
    x = 258,653,753,582.27/578,589.89
  6. Step 6: Final answer
    x = 447,041.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.