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Finding the Fourth Proportional to 664,303.80, 996,455.70 and 451,727.40

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Solution

The fourth proportional to 664,303.80, 996,455.70 and 451,727.40 is: 677,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,303.80 : 996,455.70 = 451,727.40 : x
  2. Step 2: Convert to fraction form
    664,303.80/996,455.70 = 451,727.40/x
  3. Step 3: Cross multiply
    664,303.80x = 996,455.70 × 451,727.40
  4. Step 4: Simplify right side
    664,303.80x = 450,126,342,576.18
  5. Step 5: Solve for x
    x = 450,126,342,576.18/664,303.80
  6. Step 6: Final answer
    x = 677,591.10

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Similar ratio
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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.