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Finding the Fourth Proportional to 578,190.96, 797,864.99 and 320,050.44

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Solution

The fourth proportional to 578,190.96, 797,864.99 and 320,050.44 is: 441,648.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,190.96 : 797,864.99 = 320,050.44 : x
  2. Step 2: Convert to fraction form
    578,190.96/797,864.99 = 320,050.44/x
  3. Step 3: Cross multiply
    578,190.96x = 797,864.99 × 320,050.44
  4. Step 4: Simplify right side
    578,190.96x = 255,357,039,509.84
  5. Step 5: Solve for x
    x = 255,357,039,509.84/578,190.96
  6. Step 6: Final answer
    x = 441,648.27

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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.