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Finding the Fourth Proportional to 451,657.20, 677,485.80 and 444,658.80

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Solution

The fourth proportional to 451,657.20, 677,485.80 and 444,658.80 is: 666,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,657.20 : 677,485.80 = 444,658.80 : x
  2. Step 2: Convert to fraction form
    451,657.20/677,485.80 = 444,658.80/x
  3. Step 3: Cross multiply
    451,657.20x = 677,485.80 × 444,658.80
  4. Step 4: Simplify right side
    451,657.20x = 301,250,022,845.04
  5. Step 5: Solve for x
    x = 301,250,022,845.04/451,657.20
  6. Step 6: Final answer
    x = 666,988.20

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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.