Home / 870,511.20-1,305,766.80-807,525.60

Finding the Fourth Proportional to 870,511.20, 1,305,766.80 and 807,525.60

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Solution

The fourth proportional to 870,511.20, 1,305,766.80 and 807,525.60 is: 1,211,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,511.20 : 1,305,766.80 = 807,525.60 : x
  2. Step 2: Convert to fraction form
    870,511.20/1,305,766.80 = 807,525.60/x
  3. Step 3: Cross multiply
    870,511.20x = 1,305,766.80 × 807,525.60
  4. Step 4: Simplify right side
    870,511.20x = 1,054,440,118,630.08
  5. Step 5: Solve for x
    x = 1,054,440,118,630.08/870,511.20
  6. Step 6: Final answer
    x = 1,211,288.40

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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.