Home / 886,286.89-1,329,151.47-287,109.03

Finding the Fourth Proportional to 886,286.89, 1,329,151.47 and 287,109.03

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Solution

The fourth proportional to 886,286.89, 1,329,151.47 and 287,109.03 is: 430,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,286.89 : 1,329,151.47 = 287,109.03 : x
  2. Step 2: Convert to fraction form
    886,286.89/1,329,151.47 = 287,109.03/x
  3. Step 3: Cross multiply
    886,286.89x = 1,329,151.47 × 287,109.03
  4. Step 4: Simplify right side
    886,286.89x = 381,611,389,274.77
  5. Step 5: Solve for x
    x = 381,611,389,274.77/886,286.89
  6. Step 6: Final answer
    x = 430,573.21

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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.