Home / 858,765.88-1,286,155.56-828,873.20

Finding the Fourth Proportional to 858,765.88, 1,286,155.56 and 828,873.20

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Solution

The fourth proportional to 858,765.88, 1,286,155.56 and 828,873.20 is: 1,241,385.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,765.88 : 1,286,155.56 = 828,873.20 : x
  2. Step 2: Convert to fraction form
    858,765.88/1,286,155.56 = 828,873.20/x
  3. Step 3: Cross multiply
    858,765.88x = 1,286,155.56 × 828,873.20
  4. Step 4: Simplify right side
    858,765.88x = 1,066,059,874,714.99
  5. Step 5: Solve for x
    x = 1,066,059,874,714.99/858,765.88
  6. Step 6: Final answer
    x = 1,241,385.92

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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.