Home / 1,236,240.78-1,705,989.70-684,954.48

Finding the Fourth Proportional to 1,236,240.78, 1,705,989.70 and 684,954.48

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Solution

The fourth proportional to 1,236,240.78, 1,705,989.70 and 684,954.48 is: 945,224.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,240.78 : 1,705,989.70 = 684,954.48 : x
  2. Step 2: Convert to fraction form
    1,236,240.78/1,705,989.70 = 684,954.48/x
  3. Step 3: Cross multiply
    1,236,240.78x = 1,705,989.70 × 684,954.48
  4. Step 4: Simplify right side
    1,236,240.78x = 1,168,525,287,848.86
  5. Step 5: Solve for x
    x = 1,168,525,287,848.86/1,236,240.78
  6. Step 6: Final answer
    x = 945,224.67

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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.