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Finding the Fourth Proportional to 448,716.95, 672,697.89 and 208,708.89

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Solution

The fourth proportional to 448,716.95, 672,697.89 and 208,708.89 is: 312,887.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,716.95 : 672,697.89 = 208,708.89 : x
  2. Step 2: Convert to fraction form
    448,716.95/672,697.89 = 208,708.89/x
  3. Step 3: Cross multiply
    448,716.95x = 672,697.89 × 208,708.89
  4. Step 4: Simplify right side
    448,716.95x = 140,398,029,927.24
  5. Step 5: Solve for x
    x = 140,398,029,927.24/448,716.95
  6. Step 6: Final answer
    x = 312,887.73

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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.