Home / 816,093.20-1,224,139.80-516,911.60

Finding the Fourth Proportional to 816,093.20, 1,224,139.80 and 516,911.60

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Solution

The fourth proportional to 816,093.20, 1,224,139.80 and 516,911.60 is: 775,367.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,093.20 : 1,224,139.80 = 516,911.60 : x
  2. Step 2: Convert to fraction form
    816,093.20/1,224,139.80 = 516,911.60/x
  3. Step 3: Cross multiply
    816,093.20x = 1,224,139.80 × 516,911.60
  4. Step 4: Simplify right side
    816,093.20x = 632,772,062,641.68
  5. Step 5: Solve for x
    x = 632,772,062,641.68/816,093.20
  6. Step 6: Final answer
    x = 775,367.40

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1.5x scale

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.