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Finding the Fourth Proportional to 1,177,823.88, 1,766,745.03 and 645,054.29

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Solution

The fourth proportional to 1,177,823.88, 1,766,745.03 and 645,054.29 is: 967,586.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,823.88 : 1,766,745.03 = 645,054.29 : x
  2. Step 2: Convert to fraction form
    1,177,823.88/1,766,745.03 = 645,054.29/x
  3. Step 3: Cross multiply
    1,177,823.88x = 1,766,745.03 × 645,054.29
  4. Step 4: Simplify right side
    1,177,823.88x = 1,139,646,452,103.95
  5. Step 5: Solve for x
    x = 1,139,646,452,103.95/1,177,823.88
  6. Step 6: Final answer
    x = 967,586.47

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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.