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Finding the Fourth Proportional to 751,288.46, 1,036,776.03 and 407,133.90

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Solution

The fourth proportional to 751,288.46, 1,036,776.03 and 407,133.90 is: 561,843.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,288.46 : 1,036,776.03 = 407,133.90 : x
  2. Step 2: Convert to fraction form
    751,288.46/1,036,776.03 = 407,133.90/x
  3. Step 3: Cross multiply
    751,288.46x = 1,036,776.03 × 407,133.90
  4. Step 4: Simplify right side
    751,288.46x = 422,106,668,520.42
  5. Step 5: Solve for x
    x = 422,106,668,520.42/751,288.46
  6. Step 6: Final answer
    x = 561,843.67

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