Home / 448,005.61-671,775.09-211,284.73

Finding the Fourth Proportional to 448,005.61, 671,775.09 and 211,284.73

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Solution

The fourth proportional to 448,005.61, 671,775.09 and 211,284.73 is: 316,817.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,005.61 : 671,775.09 = 211,284.73 : x
  2. Step 2: Convert to fraction form
    448,005.61/671,775.09 = 211,284.73/x
  3. Step 3: Cross multiply
    448,005.61x = 671,775.09 × 211,284.73
  4. Step 4: Simplify right side
    448,005.61x = 141,935,818,511.38
  5. Step 5: Solve for x
    x = 141,935,818,511.38/448,005.61
  6. Step 6: Final answer
    x = 316,817.06

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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.