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Finding the Fourth Proportional to 1,669,619.72, 2,504,529.03 and 644,957.84

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Solution

The fourth proportional to 1,669,619.72, 2,504,529.03 and 644,957.84 is: 967,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669,619.72 : 2,504,529.03 = 644,957.84 : x
  2. Step 2: Convert to fraction form
    1,669,619.72/2,504,529.03 = 644,957.84/x
  3. Step 3: Cross multiply
    1,669,619.72x = 2,504,529.03 × 644,957.84
  4. Step 4: Simplify right side
    1,669,619.72x = 1,615,315,633,406.10
  5. Step 5: Solve for x
    x = 1,615,315,633,406.10/1,669,619.72
  6. Step 6: Final answer
    x = 967,475.18

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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.