Home / 713,921.45-1,070,982.41-208,519.52

Finding the Fourth Proportional to 713,921.45, 1,070,982.41 and 208,519.52

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Solution

The fourth proportional to 713,921.45, 1,070,982.41 and 208,519.52 is: 312,808.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,921.45 : 1,070,982.41 = 208,519.52 : x
  2. Step 2: Convert to fraction form
    713,921.45/1,070,982.41 = 208,519.52/x
  3. Step 3: Cross multiply
    713,921.45x = 1,070,982.41 × 208,519.52
  4. Step 4: Simplify right side
    713,921.45x = 223,320,731,664.13
  5. Step 5: Solve for x
    x = 223,320,731,664.13/713,921.45
  6. Step 6: Final answer
    x = 312,808.55

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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.