Home / 689,090.70-1,033,212.69-267,875.58

Finding the Fourth Proportional to 689,090.70, 1,033,212.69 and 267,875.58

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Solution

The fourth proportional to 689,090.70, 1,033,212.69 and 267,875.58 is: 401,648.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,090.70 : 1,033,212.69 = 267,875.58 : x
  2. Step 2: Convert to fraction form
    689,090.70/1,033,212.69 = 267,875.58/x
  3. Step 3: Cross multiply
    689,090.70x = 1,033,212.69 × 267,875.58
  4. Step 4: Simplify right side
    689,090.70x = 276,772,448,597.11
  5. Step 5: Solve for x
    x = 276,772,448,597.11/689,090.70
  6. Step 6: Final answer
    x = 401,648.79

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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.