Home / 1,209,191.37-1,809,800.64-668,616.62

Finding the Fourth Proportional to 1,209,191.37, 1,809,800.64 and 668,616.62

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Solution

The fourth proportional to 1,209,191.37, 1,809,800.64 and 668,616.62 is: 1,000,720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,191.37 : 1,809,800.64 = 668,616.62 : x
  2. Step 2: Convert to fraction form
    1,209,191.37/1,809,800.64 = 668,616.62/x
  3. Step 3: Cross multiply
    1,209,191.37x = 1,809,800.64 × 668,616.62
  4. Step 4: Simplify right side
    1,209,191.37x = 1,210,062,777,741.63
  5. Step 5: Solve for x
    x = 1,210,062,777,741.63/1,209,191.37
  6. Step 6: Final answer
    x = 1,000,720.65

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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.