Home / 879,168.57-1,213,180.34-491,963.96

Finding the Fourth Proportional to 879,168.57, 1,213,180.34 and 491,963.96

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Solution

The fourth proportional to 879,168.57, 1,213,180.34 and 491,963.96 is: 678,869.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,168.57 : 1,213,180.34 = 491,963.96 : x
  2. Step 2: Convert to fraction form
    879,168.57/1,213,180.34 = 491,963.96/x
  3. Step 3: Cross multiply
    879,168.57x = 1,213,180.34 × 491,963.96
  4. Step 4: Simplify right side
    879,168.57x = 596,841,004,833.68
  5. Step 5: Solve for x
    x = 596,841,004,833.68/879,168.57
  6. Step 6: Final answer
    x = 678,869.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.