Home / 767,921.51-1,059,942.49-445,735.40

Finding the Fourth Proportional to 767,921.51, 1,059,942.49 and 445,735.40

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Solution

The fourth proportional to 767,921.51, 1,059,942.49 and 445,735.40 is: 615,237.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,921.51 : 1,059,942.49 = 445,735.40 : x
  2. Step 2: Convert to fraction form
    767,921.51/1,059,942.49 = 445,735.40/x
  3. Step 3: Cross multiply
    767,921.51x = 1,059,942.49 × 445,735.40
  4. Step 4: Simplify right side
    767,921.51x = 472,453,889,757.15
  5. Step 5: Solve for x
    x = 472,453,889,757.15/767,921.51
  6. Step 6: Final answer
    x = 615,237.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.