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Finding the Fourth Proportional to 893,708.80, 1,340,433.60 and 262,556.80

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Solution

The fourth proportional to 893,708.80, 1,340,433.60 and 262,556.80 is: 393,797.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,708.80 : 1,340,433.60 = 262,556.80 : x
  2. Step 2: Convert to fraction form
    893,708.80/1,340,433.60 = 262,556.80/x
  3. Step 3: Cross multiply
    893,708.80x = 1,340,433.60 × 262,556.80
  4. Step 4: Simplify right side
    893,708.80x = 351,939,956,628.48
  5. Step 5: Solve for x
    x = 351,939,956,628.48/893,708.80
  6. Step 6: Final answer
    x = 393,797.13

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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.