Home / 787,277.30-1,181,207.55-254,815.70

Finding the Fourth Proportional to 787,277.30, 1,181,207.55 and 254,815.70

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Solution

The fourth proportional to 787,277.30, 1,181,207.55 and 254,815.70 is: 382,317.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,277.30 : 1,181,207.55 = 254,815.70 : x
  2. Step 2: Convert to fraction form
    787,277.30/1,181,207.55 = 254,815.70/x
  3. Step 3: Cross multiply
    787,277.30x = 1,181,207.55 × 254,815.70
  4. Step 4: Simplify right side
    787,277.30x = 300,990,228,698.54
  5. Step 5: Solve for x
    x = 300,990,228,698.54/787,277.30
  6. Step 6: Final answer
    x = 382,317.93

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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.