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Finding the Fourth Proportional to 554,280.50, 764,852.98 and 321,671.27

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Solution

The fourth proportional to 554,280.50, 764,852.98 and 321,671.27 is: 443,874.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,280.50 : 764,852.98 = 321,671.27 : x
  2. Step 2: Convert to fraction form
    554,280.50/764,852.98 = 321,671.27/x
  3. Step 3: Cross multiply
    554,280.50x = 764,852.98 × 321,671.27
  4. Step 4: Simplify right side
    554,280.50x = 246,031,224,811.44
  5. Step 5: Solve for x
    x = 246,031,224,811.44/554,280.50
  6. Step 6: Final answer
    x = 443,874.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.