Home / 1,775,138.60-2,662,707.90-1,105,479.20

Finding the Fourth Proportional to 1,775,138.60, 2,662,707.90 and 1,105,479.20

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Solution

The fourth proportional to 1,775,138.60, 2,662,707.90 and 1,105,479.20 is: 1,658,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775,138.60 : 2,662,707.90 = 1,105,479.20 : x
  2. Step 2: Convert to fraction form
    1,775,138.60/2,662,707.90 = 1,105,479.20/x
  3. Step 3: Cross multiply
    1,775,138.60x = 2,662,707.90 × 1,105,479.20
  4. Step 4: Simplify right side
    1,775,138.60x = 2,943,568,199,125.68
  5. Step 5: Solve for x
    x = 2,943,568,199,125.68/1,775,138.60
  6. Step 6: Final answer
    x = 1,658,218.80

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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.