Home / 1,210,245.20-1,811,431.20-942,556.40

Finding the Fourth Proportional to 1,210,245.20, 1,811,431.20 and 942,556.40

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Solution

The fourth proportional to 1,210,245.20, 1,811,431.20 and 942,556.40 is: 1,410,768.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,245.20 : 1,811,431.20 = 942,556.40 : x
  2. Step 2: Convert to fraction form
    1,210,245.20/1,811,431.20 = 942,556.40/x
  3. Step 3: Cross multiply
    1,210,245.20x = 1,811,431.20 × 942,556.40
  4. Step 4: Simplify right side
    1,210,245.20x = 1,707,376,070,719.68
  5. Step 5: Solve for x
    x = 1,707,376,070,719.68/1,210,245.20
  6. Step 6: Final answer
    x = 1,410,768.72

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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.