Home / 927,288.37-1,391,132.31-287,579.22

Finding the Fourth Proportional to 927,288.37, 1,391,132.31 and 287,579.22

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Solution

The fourth proportional to 927,288.37, 1,391,132.31 and 287,579.22 is: 431,430.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,288.37 : 1,391,132.31 = 287,579.22 : x
  2. Step 2: Convert to fraction form
    927,288.37/1,391,132.31 = 287,579.22/x
  3. Step 3: Cross multiply
    927,288.37x = 1,391,132.31 × 287,579.22
  4. Step 4: Simplify right side
    927,288.37x = 400,060,744,626.60
  5. Step 5: Solve for x
    x = 400,060,744,626.60/927,288.37
  6. Step 6: Final answer
    x = 431,430.78

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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.