Home / 989,111.08-1,483,650.51-315,183.29

Finding the Fourth Proportional to 989,111.08, 1,483,650.51 and 315,183.29

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Solution

The fourth proportional to 989,111.08, 1,483,650.51 and 315,183.29 is: 472,769.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,111.08 : 1,483,650.51 = 315,183.29 : x
  2. Step 2: Convert to fraction form
    989,111.08/1,483,650.51 = 315,183.29/x
  3. Step 3: Cross multiply
    989,111.08x = 1,483,650.51 × 315,183.29
  4. Step 4: Simplify right side
    989,111.08x = 467,621,840,351.79
  5. Step 5: Solve for x
    x = 467,621,840,351.79/989,111.08
  6. Step 6: Final answer
    x = 472,769.79

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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.