Home / 886,820.20-1,330,426.86-255,684.76

Finding the Fourth Proportional to 886,820.20, 1,330,426.86 and 255,684.76

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Solution

The fourth proportional to 886,820.20, 1,330,426.86 and 255,684.76 is: 383,583.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,820.20 : 1,330,426.86 = 255,684.76 : x
  2. Step 2: Convert to fraction form
    886,820.20/1,330,426.86 = 255,684.76/x
  3. Step 3: Cross multiply
    886,820.20x = 1,330,426.86 × 255,684.76
  4. Step 4: Simplify right side
    886,820.20x = 340,169,872,396.65
  5. Step 5: Solve for x
    x = 340,169,872,396.65/886,820.20
  6. Step 6: Final answer
    x = 383,583.81

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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.