Home / 679,873.69-1,019,664.73-280,410.85

Finding the Fourth Proportional to 679,873.69, 1,019,664.73 and 280,410.85

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Solution

The fourth proportional to 679,873.69, 1,019,664.73 and 280,410.85 is: 420,556.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,873.69 : 1,019,664.73 = 280,410.85 : x
  2. Step 2: Convert to fraction form
    679,873.69/1,019,664.73 = 280,410.85/x
  3. Step 3: Cross multiply
    679,873.69x = 1,019,664.73 × 280,410.85
  4. Step 4: Simplify right side
    679,873.69x = 285,925,053,654.32
  5. Step 5: Solve for x
    x = 285,925,053,654.32/679,873.69
  6. Step 6: Final answer
    x = 420,556.14

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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.