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Finding the Fourth Proportional to 580,539.34, 870,464.08 and 220,736.51

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Solution

The fourth proportional to 580,539.34, 870,464.08 and 220,736.51 is: 330,973.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,539.34 : 870,464.08 = 220,736.51 : x
  2. Step 2: Convert to fraction form
    580,539.34/870,464.08 = 220,736.51/x
  3. Step 3: Cross multiply
    580,539.34x = 870,464.08 × 220,736.51
  4. Step 4: Simplify right side
    580,539.34x = 192,143,202,287.40
  5. Step 5: Solve for x
    x = 192,143,202,287.40/580,539.34
  6. Step 6: Final answer
    x = 330,973.61

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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.