Home / 851,974.56-1,276,699.68-345,920.16

Finding the Fourth Proportional to 851,974.56, 1,276,699.68 and 345,920.16

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Solution

The fourth proportional to 851,974.56, 1,276,699.68 and 345,920.16 is: 518,367.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,974.56 : 1,276,699.68 = 345,920.16 : x
  2. Step 2: Convert to fraction form
    851,974.56/1,276,699.68 = 345,920.16/x
  3. Step 3: Cross multiply
    851,974.56x = 1,276,699.68 × 345,920.16
  4. Step 4: Simplify right side
    851,974.56x = 441,636,157,577.55
  5. Step 5: Solve for x
    x = 441,636,157,577.55/851,974.56
  6. Step 6: Final answer
    x = 518,367.78

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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.