Home / 1,328,665.50-1,992,979.53-618,296.22

Finding the Fourth Proportional to 1,328,665.50, 1,992,979.53 and 618,296.22

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Solution

The fourth proportional to 1,328,665.50, 1,992,979.53 and 618,296.22 is: 927,435.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,665.50 : 1,992,979.53 = 618,296.22 : x
  2. Step 2: Convert to fraction form
    1,328,665.50/1,992,979.53 = 618,296.22/x
  3. Step 3: Cross multiply
    1,328,665.50x = 1,992,979.53 × 618,296.22
  4. Step 4: Simplify right side
    1,328,665.50x = 1,232,251,709,936.38
  5. Step 5: Solve for x
    x = 1,232,251,709,936.38/1,328,665.50
  6. Step 6: Final answer
    x = 927,435.62

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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.