Home / 1,000,143.82-1,380,202.88-541,258.46

Finding the Fourth Proportional to 1,000,143.82, 1,380,202.88 and 541,258.46

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Solution

The fourth proportional to 1,000,143.82, 1,380,202.88 and 541,258.46 is: 746,939.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,143.82 : 1,380,202.88 = 541,258.46 : x
  2. Step 2: Convert to fraction form
    1,000,143.82/1,380,202.88 = 541,258.46/x
  3. Step 3: Cross multiply
    1,000,143.82x = 1,380,202.88 × 541,258.46
  4. Step 4: Simplify right side
    1,000,143.82x = 747,046,485,316.37
  5. Step 5: Solve for x
    x = 747,046,485,316.37/1,000,143.82
  6. Step 6: Final answer
    x = 746,939.06

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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.