Home / 915,936.37-1,264,143.57-508,169.55

Finding the Fourth Proportional to 915,936.37, 1,264,143.57 and 508,169.55

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Solution

The fourth proportional to 915,936.37, 1,264,143.57 and 508,169.55 is: 701,357.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,936.37 : 1,264,143.57 = 508,169.55 : x
  2. Step 2: Convert to fraction form
    915,936.37/1,264,143.57 = 508,169.55/x
  3. Step 3: Cross multiply
    915,936.37x = 1,264,143.57 × 508,169.55
  4. Step 4: Simplify right side
    915,936.37x = 642,399,269,102.29
  5. Step 5: Solve for x
    x = 642,399,269,102.29/915,936.37
  6. Step 6: Final answer
    x = 701,357.97

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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.