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Finding the Fourth Proportional to 447,087, 670,632.12 and 424,662.96

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Solution

The fourth proportional to 447,087, 670,632.12 and 424,662.96 is: 636,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,087 : 670,632.12 = 424,662.96 : x
  2. Step 2: Convert to fraction form
    447,087/670,632.12 = 424,662.96/x
  3. Step 3: Cross multiply
    447,087x = 670,632.12 × 424,662.96
  4. Step 4: Simplify right side
    447,087x = 284,792,621,150.28
  5. Step 5: Solve for x
    x = 284,792,621,150.28/447,087
  6. Step 6: Final answer
    x = 636,995.98

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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.