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Finding the Fourth Proportional to 447,910.93, 670,288.35 and 279,510.49

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Solution

The fourth proportional to 447,910.93, 670,288.35 and 279,510.49 is: 418,280.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,910.93 : 670,288.35 = 279,510.49 : x
  2. Step 2: Convert to fraction form
    447,910.93/670,288.35 = 279,510.49/x
  3. Step 3: Cross multiply
    447,910.93x = 670,288.35 × 279,510.49
  4. Step 4: Simplify right side
    447,910.93x = 187,352,621,798.35
  5. Step 5: Solve for x
    x = 187,352,621,798.35/447,910.93
  6. Step 6: Final answer
    x = 418,280.98

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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.