Home / 1,209,991.80-1,815,643.80-500,091.60

Finding the Fourth Proportional to 1,209,991.80, 1,815,643.80 and 500,091.60

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Solution

The fourth proportional to 1,209,991.80, 1,815,643.80 and 500,091.60 is: 750,408.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,991.80 : 1,815,643.80 = 500,091.60 : x
  2. Step 2: Convert to fraction form
    1,209,991.80/1,815,643.80 = 500,091.60/x
  3. Step 3: Cross multiply
    1,209,991.80x = 1,815,643.80 × 500,091.60
  4. Step 4: Simplify right side
    1,209,991.80x = 907,988,212,972.08
  5. Step 5: Solve for x
    x = 907,988,212,972.08/1,209,991.80
  6. Step 6: Final answer
    x = 750,408.57

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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.