Home / 989,256.89-1,483,945.47-279,338.46

Finding the Fourth Proportional to 989,256.89, 1,483,945.47 and 279,338.46

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Solution

The fourth proportional to 989,256.89, 1,483,945.47 and 279,338.46 is: 419,024.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,256.89 : 1,483,945.47 = 279,338.46 : x
  2. Step 2: Convert to fraction form
    989,256.89/1,483,945.47 = 279,338.46/x
  3. Step 3: Cross multiply
    989,256.89x = 1,483,945.47 × 279,338.46
  4. Step 4: Simplify right side
    989,256.89x = 414,523,042,313.78
  5. Step 5: Solve for x
    x = 414,523,042,313.78/989,256.89
  6. Step 6: Final answer
    x = 419,024.67

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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.