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Finding the Fourth Proportional to 880,877.72, 1,321,404.05 and 281,688.32

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Solution

The fourth proportional to 880,877.72, 1,321,404.05 and 281,688.32 is: 422,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,877.72 : 1,321,404.05 = 281,688.32 : x
  2. Step 2: Convert to fraction form
    880,877.72/1,321,404.05 = 281,688.32/x
  3. Step 3: Cross multiply
    880,877.72x = 1,321,404.05 × 281,688.32
  4. Step 4: Simplify right side
    880,877.72x = 372,224,080,982.90
  5. Step 5: Solve for x
    x = 372,224,080,982.90/880,877.72
  6. Step 6: Final answer
    x = 422,560.45

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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.