Home / 927,287.37-1,391,130.81-287,578.22

Finding the Fourth Proportional to 927,287.37, 1,391,130.81 and 287,578.22

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Solution

The fourth proportional to 927,287.37, 1,391,130.81 and 287,578.22 is: 431,429.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,287.37 : 1,391,130.81 = 287,578.22 : x
  2. Step 2: Convert to fraction form
    927,287.37/1,391,130.81 = 287,578.22/x
  3. Step 3: Cross multiply
    927,287.37x = 1,391,130.81 × 287,578.22
  4. Step 4: Simplify right side
    927,287.37x = 400,058,915,171.30
  5. Step 5: Solve for x
    x = 400,058,915,171.30/927,287.37
  6. Step 6: Final answer
    x = 431,429.27

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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.