Home / 919,847.37-1,379,665.91-245,981.21

Finding the Fourth Proportional to 919,847.37, 1,379,665.91 and 245,981.21

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Solution

The fourth proportional to 919,847.37, 1,379,665.91 and 245,981.21 is: 368,943.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,847.37 : 1,379,665.91 = 245,981.21 : x
  2. Step 2: Convert to fraction form
    919,847.37/1,379,665.91 = 245,981.21/x
  3. Step 3: Cross multiply
    919,847.37x = 1,379,665.91 × 245,981.21
  4. Step 4: Simplify right side
    919,847.37x = 339,371,883,654.18
  5. Step 5: Solve for x
    x = 339,371,883,654.18/919,847.37
  6. Step 6: Final answer
    x = 368,943.69

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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.