Home / 1,186,345.20-1,775,370.60-1,086,812.40

Finding the Fourth Proportional to 1,186,345.20, 1,775,370.60 and 1,086,812.40

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Solution

The fourth proportional to 1,186,345.20, 1,775,370.60 and 1,086,812.40 is: 1,626,419.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,345.20 : 1,775,370.60 = 1,086,812.40 : x
  2. Step 2: Convert to fraction form
    1,186,345.20/1,775,370.60 = 1,086,812.40/x
  3. Step 3: Cross multiply
    1,186,345.20x = 1,775,370.60 × 1,086,812.40
  4. Step 4: Simplify right side
    1,186,345.20x = 1,929,494,782,675.44
  5. Step 5: Solve for x
    x = 1,929,494,782,675.44/1,186,345.20
  6. Step 6: Final answer
    x = 1,626,419.34

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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.