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Finding the Fourth Proportional to 507,671.28, 700,584.48 and 281,316.60

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Solution

The fourth proportional to 507,671.28, 700,584.48 and 281,316.60 is: 388,215.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,671.28 : 700,584.48 = 281,316.60 : x
  2. Step 2: Convert to fraction form
    507,671.28/700,584.48 = 281,316.60/x
  3. Step 3: Cross multiply
    507,671.28x = 700,584.48 × 281,316.60
  4. Step 4: Simplify right side
    507,671.28x = 197,086,043,926.37
  5. Step 5: Solve for x
    x = 197,086,043,926.37/507,671.28
  6. Step 6: Final answer
    x = 388,215.86

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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.