Home / 1,080,152.20-1,620,228.30-870,200.20

Finding the Fourth Proportional to 1,080,152.20, 1,620,228.30 and 870,200.20

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Solution

The fourth proportional to 1,080,152.20, 1,620,228.30 and 870,200.20 is: 1,305,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,152.20 : 1,620,228.30 = 870,200.20 : x
  2. Step 2: Convert to fraction form
    1,080,152.20/1,620,228.30 = 870,200.20/x
  3. Step 3: Cross multiply
    1,080,152.20x = 1,620,228.30 × 870,200.20
  4. Step 4: Simplify right side
    1,080,152.20x = 1,409,922,990,705.66
  5. Step 5: Solve for x
    x = 1,409,922,990,705.66/1,080,152.20
  6. Step 6: Final answer
    x = 1,305,300.30

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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.