Home / 1,105,067.80-1,661,538.30-931,857.40

Finding the Fourth Proportional to 1,105,067.80, 1,661,538.30 and 931,857.40

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Solution

The fourth proportional to 1,105,067.80, 1,661,538.30 and 931,857.40 is: 1,401,105.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,067.80 : 1,661,538.30 = 931,857.40 : x
  2. Step 2: Convert to fraction form
    1,105,067.80/1,661,538.30 = 931,857.40/x
  3. Step 3: Cross multiply
    1,105,067.80x = 1,661,538.30 × 931,857.40
  4. Step 4: Simplify right side
    1,105,067.80x = 1,548,316,760,238.42
  5. Step 5: Solve for x
    x = 1,548,316,760,238.42/1,105,067.80
  6. Step 6: Final answer
    x = 1,401,105.67

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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.