Home / 1,320,087.45-1,980,131.18-1,054,366.95

Finding the Fourth Proportional to 1,320,087.45, 1,980,131.18 and 1,054,366.95

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Solution

The fourth proportional to 1,320,087.45, 1,980,131.18 and 1,054,366.95 is: 1,581,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,087.45 : 1,980,131.18 = 1,054,366.95 : x
  2. Step 2: Convert to fraction form
    1,320,087.45/1,980,131.18 = 1,054,366.95/x
  3. Step 3: Cross multiply
    1,320,087.45x = 1,980,131.18 × 1,054,366.95
  4. Step 4: Simplify right side
    1,320,087.45x = 2,087,784,867,584.67
  5. Step 5: Solve for x
    x = 2,087,784,867,584.67/1,320,087.45
  6. Step 6: Final answer
    x = 1,581,550.43

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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.