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Finding the Fourth Proportional to 578,321.40, 796,657.52 and 492,003.96

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Solution

The fourth proportional to 578,321.40, 796,657.52 and 492,003.96 is: 677,752.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,321.40 : 796,657.52 = 492,003.96 : x
  2. Step 2: Convert to fraction form
    578,321.40/796,657.52 = 492,003.96/x
  3. Step 3: Cross multiply
    578,321.40x = 796,657.52 × 492,003.96
  4. Step 4: Simplify right side
    578,321.40x = 391,958,654,603.78
  5. Step 5: Solve for x
    x = 391,958,654,603.78/578,321.40
  6. Step 6: Final answer
    x = 677,752.29

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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.