Home / 447,790.40-671,685.60-306,072.80

Finding the Fourth Proportional to 447,790.40, 671,685.60 and 306,072.80

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Solution

The fourth proportional to 447,790.40, 671,685.60 and 306,072.80 is: 459,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,790.40 : 671,685.60 = 306,072.80 : x
  2. Step 2: Convert to fraction form
    447,790.40/671,685.60 = 306,072.80/x
  3. Step 3: Cross multiply
    447,790.40x = 671,685.60 × 306,072.80
  4. Step 4: Simplify right side
    447,790.40x = 205,584,692,311.68
  5. Step 5: Solve for x
    x = 205,584,692,311.68/447,790.40
  6. Step 6: Final answer
    x = 459,109.20

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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.