Home / 862,500.58-1,189,443.48-681,644.58

Finding the Fourth Proportional to 862,500.58, 1,189,443.48 and 681,644.58

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Solution

The fourth proportional to 862,500.58, 1,189,443.48 and 681,644.58 is: 940,031.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,500.58 : 1,189,443.48 = 681,644.58 : x
  2. Step 2: Convert to fraction form
    862,500.58/1,189,443.48 = 681,644.58/x
  3. Step 3: Cross multiply
    862,500.58x = 1,189,443.48 × 681,644.58
  4. Step 4: Simplify right side
    862,500.58x = 810,777,701,358.34
  5. Step 5: Solve for x
    x = 810,777,701,358.34/862,500.58
  6. Step 6: Final answer
    x = 940,031.49

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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.