Home / 806,917.60-1,210,376.40-275,039.20

Finding the Fourth Proportional to 806,917.60, 1,210,376.40 and 275,039.20

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Solution

The fourth proportional to 806,917.60, 1,210,376.40 and 275,039.20 is: 412,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,917.60 : 1,210,376.40 = 275,039.20 : x
  2. Step 2: Convert to fraction form
    806,917.60/1,210,376.40 = 275,039.20/x
  3. Step 3: Cross multiply
    806,917.60x = 1,210,376.40 × 275,039.20
  4. Step 4: Simplify right side
    806,917.60x = 332,900,956,754.88
  5. Step 5: Solve for x
    x = 332,900,956,754.88/806,917.60
  6. Step 6: Final answer
    x = 412,558.80

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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.