Home / 809,460.31-1,213,978.82-240,688.24

Finding the Fourth Proportional to 809,460.31, 1,213,978.82 and 240,688.24

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Solution

The fourth proportional to 809,460.31, 1,213,978.82 and 240,688.24 is: 360,969.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,460.31 : 1,213,978.82 = 240,688.24 : x
  2. Step 2: Convert to fraction form
    809,460.31/1,213,978.82 = 240,688.24/x
  3. Step 3: Cross multiply
    809,460.31x = 1,213,978.82 × 240,688.24
  4. Step 4: Simplify right side
    809,460.31x = 292,190,425,583.08
  5. Step 5: Solve for x
    x = 292,190,425,583.08/809,460.31
  6. Step 6: Final answer
    x = 360,969.43

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1.5x scale

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.