Home / 1,298,145.42-1,791,431.64-725,185.44

Finding the Fourth Proportional to 1,298,145.42, 1,791,431.64 and 725,185.44

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Solution

The fourth proportional to 1,298,145.42, 1,791,431.64 and 725,185.44 is: 1,000,750.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,145.42 : 1,791,431.64 = 725,185.44 : x
  2. Step 2: Convert to fraction form
    1,298,145.42/1,791,431.64 = 725,185.44/x
  3. Step 3: Cross multiply
    1,298,145.42x = 1,791,431.64 × 725,185.44
  4. Step 4: Simplify right side
    1,298,145.42x = 1,299,120,142,083.32
  5. Step 5: Solve for x
    x = 1,299,120,142,083.32/1,298,145.42
  6. Step 6: Final answer
    x = 1,000,750.86

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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.