Home / 808,218.60-1,212,327.90-276,340.20

Finding the Fourth Proportional to 808,218.60, 1,212,327.90 and 276,340.20

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Solution

The fourth proportional to 808,218.60, 1,212,327.90 and 276,340.20 is: 414,510.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,218.60 : 1,212,327.90 = 276,340.20 : x
  2. Step 2: Convert to fraction form
    808,218.60/1,212,327.90 = 276,340.20/x
  3. Step 3: Cross multiply
    808,218.60x = 1,212,327.90 × 276,340.20
  4. Step 4: Simplify right side
    808,218.60x = 335,014,934,351.58
  5. Step 5: Solve for x
    x = 335,014,934,351.58/808,218.60
  6. Step 6: Final answer
    x = 414,510.30

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Double scale
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Similar ratio
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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.