Home / 989,278.60-1,483,961.10-324,430.60

Finding the Fourth Proportional to 989,278.60, 1,483,961.10 and 324,430.60

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Solution

The fourth proportional to 989,278.60, 1,483,961.10 and 324,430.60 is: 486,660.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,278.60 : 1,483,961.10 = 324,430.60 : x
  2. Step 2: Convert to fraction form
    989,278.60/1,483,961.10 = 324,430.60/x
  3. Step 3: Cross multiply
    989,278.60x = 1,483,961.10 × 324,430.60
  4. Step 4: Simplify right side
    989,278.60x = 481,442,390,049.66
  5. Step 5: Solve for x
    x = 481,442,390,049.66/989,278.60
  6. Step 6: Final answer
    x = 486,660.07

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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.