Home / 989,141.61-1,483,504.65-279,003.57

Finding the Fourth Proportional to 989,141.61, 1,483,504.65 and 279,003.57

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Solution

The fourth proportional to 989,141.61, 1,483,504.65 and 279,003.57 is: 418,446.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,141.61 : 1,483,504.65 = 279,003.57 : x
  2. Step 2: Convert to fraction form
    989,141.61/1,483,504.65 = 279,003.57/x
  3. Step 3: Cross multiply
    989,141.61x = 1,483,504.65 × 279,003.57
  4. Step 4: Simplify right side
    989,141.61x = 413,903,093,461.60
  5. Step 5: Solve for x
    x = 413,903,093,461.60/989,141.61
  6. Step 6: Final answer
    x = 418,446.75

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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.