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Finding the Fourth Proportional to 605,087.70, 906,076.35 and 446,457.30

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Solution

The fourth proportional to 605,087.70, 906,076.35 and 446,457.30 is: 668,538.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,087.70 : 906,076.35 = 446,457.30 : x
  2. Step 2: Convert to fraction form
    605,087.70/906,076.35 = 446,457.30/x
  3. Step 3: Cross multiply
    605,087.70x = 906,076.35 × 446,457.30
  4. Step 4: Simplify right side
    605,087.70x = 404,524,400,814.86
  5. Step 5: Solve for x
    x = 404,524,400,814.86/605,087.70
  6. Step 6: Final answer
    x = 668,538.46

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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.