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Finding the Fourth Proportional to 580,544.25, 870,825.60 and 220,720.59

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Solution

The fourth proportional to 580,544.25, 870,825.60 and 220,720.59 is: 331,084.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,544.25 : 870,825.60 = 220,720.59 : x
  2. Step 2: Convert to fraction form
    580,544.25/870,825.60 = 220,720.59/x
  3. Step 3: Cross multiply
    580,544.25x = 870,825.60 × 220,720.59
  4. Step 4: Simplify right side
    580,544.25x = 192,209,140,219.10
  5. Step 5: Solve for x
    x = 192,209,140,219.10/580,544.25
  6. Step 6: Final answer
    x = 331,084.39

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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.