Home / 809,492.96-1,214,125.32-509,057.60

Finding the Fourth Proportional to 809,492.96, 1,214,125.32 and 509,057.60

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Solution

The fourth proportional to 809,492.96, 1,214,125.32 and 509,057.60 is: 763,514.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,492.96 : 1,214,125.32 = 509,057.60 : x
  2. Step 2: Convert to fraction form
    809,492.96/1,214,125.32 = 509,057.60/x
  3. Step 3: Cross multiply
    809,492.96x = 1,214,125.32 × 509,057.60
  4. Step 4: Simplify right side
    809,492.96x = 618,059,721,498.43
  5. Step 5: Solve for x
    x = 618,059,721,498.43/809,492.96
  6. Step 6: Final answer
    x = 763,514.63

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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.