Home / 1,186,516.88-1,779,760.44-287,966

Finding the Fourth Proportional to 1,186,516.88, 1,779,760.44 and 287,966

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Solution

The fourth proportional to 1,186,516.88, 1,779,760.44 and 287,966 is: 431,945.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,516.88 : 1,779,760.44 = 287,966 : x
  2. Step 2: Convert to fraction form
    1,186,516.88/1,779,760.44 = 287,966/x
  3. Step 3: Cross multiply
    1,186,516.88x = 1,779,760.44 × 287,966
  4. Step 4: Simplify right side
    1,186,516.88x = 512,510,494,865.04
  5. Step 5: Solve for x
    x = 512,510,494,865.04/1,186,516.88
  6. Step 6: Final answer
    x = 431,945.39

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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.