Home / 1,211,395.64-1,816,952.75-312,766.75

Finding the Fourth Proportional to 1,211,395.64, 1,816,952.75 and 312,766.75

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Solution

The fourth proportional to 1,211,395.64, 1,816,952.75 and 312,766.75 is: 469,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,395.64 : 1,816,952.75 = 312,766.75 : x
  2. Step 2: Convert to fraction form
    1,211,395.64/1,816,952.75 = 312,766.75/x
  3. Step 3: Cross multiply
    1,211,395.64x = 1,816,952.75 × 312,766.75
  4. Step 4: Simplify right side
    1,211,395.64x = 568,282,408,401.30
  5. Step 5: Solve for x
    x = 568,282,408,401.30/1,211,395.64
  6. Step 6: Final answer
    x = 469,113.80

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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.