Home / 1,295,105.84-1,788,374.04-812,500.64

Finding the Fourth Proportional to 1,295,105.84, 1,788,374.04 and 812,500.64

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Solution

The fourth proportional to 1,295,105.84, 1,788,374.04 and 812,500.64 is: 1,121,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,105.84 : 1,788,374.04 = 812,500.64 : x
  2. Step 2: Convert to fraction form
    1,295,105.84/1,788,374.04 = 812,500.64/x
  3. Step 3: Cross multiply
    1,295,105.84x = 1,788,374.04 × 812,500.64
  4. Step 4: Simplify right side
    1,295,105.84x = 1,453,055,052,059.39
  5. Step 5: Solve for x
    x = 1,453,055,052,059.39/1,295,105.84
  6. Step 6: Final answer
    x = 1,121,958.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.