Home / 1,330,286.55-1,994,912.16-431,510.95

Finding the Fourth Proportional to 1,330,286.55, 1,994,912.16 and 431,510.95

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Solution

The fourth proportional to 1,330,286.55, 1,994,912.16 and 431,510.95 is: 647,098.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,286.55 : 1,994,912.16 = 431,510.95 : x
  2. Step 2: Convert to fraction form
    1,330,286.55/1,994,912.16 = 431,510.95/x
  3. Step 3: Cross multiply
    1,330,286.55x = 1,994,912.16 × 431,510.95
  4. Step 4: Simplify right side
    1,330,286.55x = 860,826,441,328.15
  5. Step 5: Solve for x
    x = 860,826,441,328.15/1,330,286.55
  6. Step 6: Final answer
    x = 647,098.51

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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.