Home / 886,821.20-1,330,428.36-255,685.76

Finding the Fourth Proportional to 886,821.20, 1,330,428.36 and 255,685.76

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Solution

The fourth proportional to 886,821.20, 1,330,428.36 and 255,685.76 is: 383,585.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,821.20 : 1,330,428.36 = 255,685.76 : x
  2. Step 2: Convert to fraction form
    886,821.20/1,330,428.36 = 255,685.76/x
  3. Step 3: Cross multiply
    886,821.20x = 1,330,428.36 × 255,685.76
  4. Step 4: Simplify right side
    886,821.20x = 340,171,586,352.15
  5. Step 5: Solve for x
    x = 340,171,586,352.15/886,821.20
  6. Step 6: Final answer
    x = 383,585.31

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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.