Home / 1,227,195.68-1,693,443.51-768,289.23

Finding the Fourth Proportional to 1,227,195.68, 1,693,443.51 and 768,289.23

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Solution

The fourth proportional to 1,227,195.68, 1,693,443.51 and 768,289.23 is: 1,060,184.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,195.68 : 1,693,443.51 = 768,289.23 : x
  2. Step 2: Convert to fraction form
    1,227,195.68/1,693,443.51 = 768,289.23/x
  3. Step 3: Cross multiply
    1,227,195.68x = 1,693,443.51 × 768,289.23
  4. Step 4: Simplify right side
    1,227,195.68x = 1,301,054,410,346.40
  5. Step 5: Solve for x
    x = 1,301,054,410,346.40/1,227,195.68
  6. Step 6: Final answer
    x = 1,060,184.97

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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.