Home / 912,410.40-1,368,615.60-810,933.60

Finding the Fourth Proportional to 912,410.40, 1,368,615.60 and 810,933.60

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Solution

The fourth proportional to 912,410.40, 1,368,615.60 and 810,933.60 is: 1,216,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,410.40 : 1,368,615.60 = 810,933.60 : x
  2. Step 2: Convert to fraction form
    912,410.40/1,368,615.60 = 810,933.60/x
  3. Step 3: Cross multiply
    912,410.40x = 1,368,615.60 × 810,933.60
  4. Step 4: Simplify right side
    912,410.40x = 1,109,856,375,524.16
  5. Step 5: Solve for x
    x = 1,109,856,375,524.16/912,410.40
  6. Step 6: Final answer
    x = 1,216,400.40

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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.