Home / 1,209,409.12-1,814,376.12-367,939

Finding the Fourth Proportional to 1,209,409.12, 1,814,376.12 and 367,939

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Solution

The fourth proportional to 1,209,409.12, 1,814,376.12 and 367,939 is: 551,988.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,409.12 : 1,814,376.12 = 367,939 : x
  2. Step 2: Convert to fraction form
    1,209,409.12/1,814,376.12 = 367,939/x
  3. Step 3: Cross multiply
    1,209,409.12x = 1,814,376.12 × 367,939
  4. Step 4: Simplify right side
    1,209,409.12x = 667,579,735,216.68
  5. Step 5: Solve for x
    x = 667,579,735,216.68/1,209,409.12
  6. Step 6: Final answer
    x = 551,988.34

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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.