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Finding the Fourth Proportional to 445,289.94, 666,358.21 and 276,889.57

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Solution

The fourth proportional to 445,289.94, 666,358.21 and 276,889.57 is: 414,353.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,289.94 : 666,358.21 = 276,889.57 : x
  2. Step 2: Convert to fraction form
    445,289.94/666,358.21 = 276,889.57/x
  3. Step 3: Cross multiply
    445,289.94x = 666,358.21 × 276,889.57
  4. Step 4: Simplify right side
    445,289.94x = 184,507,638,232.87
  5. Step 5: Solve for x
    x = 184,507,638,232.87/445,289.94
  6. Step 6: Final answer
    x = 414,353.93

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1.5x scale

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.