Home / 866,769.68-1,299,921.56-305,730.32

Finding the Fourth Proportional to 866,769.68, 1,299,921.56 and 305,730.32

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Solution

The fourth proportional to 866,769.68, 1,299,921.56 and 305,730.32 is: 458,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,769.68 : 1,299,921.56 = 305,730.32 : x
  2. Step 2: Convert to fraction form
    866,769.68/1,299,921.56 = 305,730.32/x
  3. Step 3: Cross multiply
    866,769.68x = 1,299,921.56 × 305,730.32
  4. Step 4: Simplify right side
    866,769.68x = 397,425,434,513.70
  5. Step 5: Solve for x
    x = 397,425,434,513.70/866,769.68
  6. Step 6: Final answer
    x = 458,513.31

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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.