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Finding the Fourth Proportional to 638,297.32, 957,238.62 and 301,291.24

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Solution

The fourth proportional to 638,297.32, 957,238.62 and 301,291.24 is: 451,838.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,297.32 : 957,238.62 = 301,291.24 : x
  2. Step 2: Convert to fraction form
    638,297.32/957,238.62 = 301,291.24/x
  3. Step 3: Cross multiply
    638,297.32x = 957,238.62 × 301,291.24
  4. Step 4: Simplify right side
    638,297.32x = 288,407,610,795.69
  5. Step 5: Solve for x
    x = 288,407,610,795.69/638,297.32
  6. Step 6: Final answer
    x = 451,838.98

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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.