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Finding the Fourth Proportional to 447,901.45, 670,273.65 and 279,501.10

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Solution

The fourth proportional to 447,901.45, 670,273.65 and 279,501.10 is: 418,266.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,901.45 : 670,273.65 = 279,501.10 : x
  2. Step 2: Convert to fraction form
    447,901.45/670,273.65 = 279,501.10/x
  3. Step 3: Cross multiply
    447,901.45x = 670,273.65 × 279,501.10
  4. Step 4: Simplify right side
    447,901.45x = 187,342,220,800.33
  5. Step 5: Solve for x
    x = 187,342,220,800.33/447,901.45
  6. Step 6: Final answer
    x = 418,266.61

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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.