Home / 1,384,191.36-1,909,823.16-810,923.52

Finding the Fourth Proportional to 1,384,191.36, 1,909,823.16 and 810,923.52

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Solution

The fourth proportional to 1,384,191.36, 1,909,823.16 and 810,923.52 is: 1,118,863.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,191.36 : 1,909,823.16 = 810,923.52 : x
  2. Step 2: Convert to fraction form
    1,384,191.36/1,909,823.16 = 810,923.52/x
  3. Step 3: Cross multiply
    1,384,191.36x = 1,909,823.16 × 810,923.52
  4. Step 4: Simplify right side
    1,384,191.36x = 1,548,720,519,484.72
  5. Step 5: Solve for x
    x = 1,548,720,519,484.72/1,384,191.36
  6. Step 6: Final answer
    x = 1,118,863.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.