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Finding the Fourth Proportional to 448,313.88, 672,339.60 and 369,231.96

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Solution

The fourth proportional to 448,313.88, 672,339.60 and 369,231.96 is: 553,739.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,313.88 : 672,339.60 = 369,231.96 : x
  2. Step 2: Convert to fraction form
    448,313.88/672,339.60 = 369,231.96/x
  3. Step 3: Cross multiply
    448,313.88x = 672,339.60 × 369,231.96
  4. Step 4: Simplify right side
    448,313.88x = 248,249,268,293.62
  5. Step 5: Solve for x
    x = 248,249,268,293.62/448,313.88
  6. Step 6: Final answer
    x = 553,739.87

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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.