Home / 448,469.18-621,558.96-440,071.10

Finding the Fourth Proportional to 448,469.18, 621,558.96 and 440,071.10

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Solution

The fourth proportional to 448,469.18, 621,558.96 and 440,071.10 is: 609,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,469.18 : 621,558.96 = 440,071.10 : x
  2. Step 2: Convert to fraction form
    448,469.18/621,558.96 = 440,071.10/x
  3. Step 3: Cross multiply
    448,469.18x = 621,558.96 × 440,071.10
  4. Step 4: Simplify right side
    448,469.18x = 273,530,135,242.06
  5. Step 5: Solve for x
    x = 273,530,135,242.06/448,469.18
  6. Step 6: Final answer
    x = 609,919.58

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.