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Finding the Fourth Proportional to 447,660.40, 671,490.60 and 442,994.80

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Solution

The fourth proportional to 447,660.40, 671,490.60 and 442,994.80 is: 664,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,660.40 : 671,490.60 = 442,994.80 : x
  2. Step 2: Convert to fraction form
    447,660.40/671,490.60 = 442,994.80/x
  3. Step 3: Cross multiply
    447,660.40x = 671,490.60 × 442,994.80
  4. Step 4: Simplify right side
    447,660.40x = 297,466,844,048.88
  5. Step 5: Solve for x
    x = 297,466,844,048.88/447,660.40
  6. Step 6: Final answer
    x = 664,492.20

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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.