Home / 1,285,222.40-1,925,990.40-945,612.80

Finding the Fourth Proportional to 1,285,222.40, 1,925,990.40 and 945,612.80

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Solution

The fourth proportional to 1,285,222.40, 1,925,990.40 and 945,612.80 is: 1,417,063.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,222.40 : 1,925,990.40 = 945,612.80 : x
  2. Step 2: Convert to fraction form
    1,285,222.40/1,925,990.40 = 945,612.80/x
  3. Step 3: Cross multiply
    1,285,222.40x = 1,925,990.40 × 945,612.80
  4. Step 4: Simplify right side
    1,285,222.40x = 1,821,241,174,917.12
  5. Step 5: Solve for x
    x = 1,821,241,174,917.12/1,285,222.40
  6. Step 6: Final answer
    x = 1,417,063.05

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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.