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Finding the Fourth Proportional to 528,429.36, 792,786.96 and 376,817.92

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Solution

The fourth proportional to 528,429.36, 792,786.96 and 376,817.92 is: 565,328.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,429.36 : 792,786.96 = 376,817.92 : x
  2. Step 2: Convert to fraction form
    528,429.36/792,786.96 = 376,817.92/x
  3. Step 3: Cross multiply
    528,429.36x = 792,786.96 × 376,817.92
  4. Step 4: Simplify right side
    528,429.36x = 298,736,333,270.32
  5. Step 5: Solve for x
    x = 298,736,333,270.32/528,429.36
  6. Step 6: Final answer
    x = 565,328.79

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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.