Home / 809,374.20-1,214,795.70-410,292.60

Finding the Fourth Proportional to 809,374.20, 1,214,795.70 and 410,292.60

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Solution

The fourth proportional to 809,374.20, 1,214,795.70 and 410,292.60 is: 615,811.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,374.20 : 1,214,795.70 = 410,292.60 : x
  2. Step 2: Convert to fraction form
    809,374.20/1,214,795.70 = 410,292.60/x
  3. Step 3: Cross multiply
    809,374.20x = 1,214,795.70 × 410,292.60
  4. Step 4: Simplify right side
    809,374.20x = 498,421,686,221.82
  5. Step 5: Solve for x
    x = 498,421,686,221.82/809,374.20
  6. Step 6: Final answer
    x = 615,811.19

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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.