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Finding the Fourth Proportional to 3,280,316.75, 4,919,914.31 and 883,600.87

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Solution

The fourth proportional to 3,280,316.75, 4,919,914.31 and 883,600.87 is: 1,325,250.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,316.75 : 4,919,914.31 = 883,600.87 : x
  2. Step 2: Convert to fraction form
    3,280,316.75/4,919,914.31 = 883,600.87/x
  3. Step 3: Cross multiply
    3,280,316.75x = 4,919,914.31 × 883,600.87
  4. Step 4: Simplify right side
    3,280,316.75x = 4,347,240,564,641.45
  5. Step 5: Solve for x
    x = 4,347,240,564,641.45/3,280,316.75
  6. Step 6: Final answer
    x = 1,325,250.24

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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.