Home / 810,963.69-1,119,081.99-448,359.09

Finding the Fourth Proportional to 810,963.69, 1,119,081.99 and 448,359.09

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Solution

The fourth proportional to 810,963.69, 1,119,081.99 and 448,359.09 is: 618,709.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,963.69 : 1,119,081.99 = 448,359.09 : x
  2. Step 2: Convert to fraction form
    810,963.69/1,119,081.99 = 448,359.09/x
  3. Step 3: Cross multiply
    810,963.69x = 1,119,081.99 × 448,359.09
  4. Step 4: Simplify right side
    810,963.69x = 501,750,582,671.79
  5. Step 5: Solve for x
    x = 501,750,582,671.79/810,963.69
  6. Step 6: Final answer
    x = 618,709.06

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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.