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Finding the Fourth Proportional to 447,009.96, 670,955.58 and 328,348.20

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Solution

The fourth proportional to 447,009.96, 670,955.58 and 328,348.20 is: 492,845.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,009.96 : 670,955.58 = 328,348.20 : x
  2. Step 2: Convert to fraction form
    447,009.96/670,955.58 = 328,348.20/x
  3. Step 3: Cross multiply
    447,009.96x = 670,955.58 × 328,348.20
  4. Step 4: Simplify right side
    447,009.96x = 220,307,056,972.96
  5. Step 5: Solve for x
    x = 220,307,056,972.96/447,009.96
  6. Step 6: Final answer
    x = 492,845.97

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1.5x scale

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.