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Finding the Fourth Proportional to 447,013.96, 670,961.58 and 328,352.20

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Solution

The fourth proportional to 447,013.96, 670,961.58 and 328,352.20 is: 492,851.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,013.96 : 670,961.58 = 328,352.20 : x
  2. Step 2: Convert to fraction form
    447,013.96/670,961.58 = 328,352.20/x
  3. Step 3: Cross multiply
    447,013.96x = 670,961.58 × 328,352.20
  4. Step 4: Simplify right side
    447,013.96x = 220,311,710,908.48
  5. Step 5: Solve for x
    x = 220,311,710,908.48/447,013.96
  6. Step 6: Final answer
    x = 492,851.97

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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.