Home / 815,977.21-1,125,760.81-466,862.64

Finding the Fourth Proportional to 815,977.21, 1,125,760.81 and 466,862.64

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Solution

The fourth proportional to 815,977.21, 1,125,760.81 and 466,862.64 is: 644,105.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,977.21 : 1,125,760.81 = 466,862.64 : x
  2. Step 2: Convert to fraction form
    815,977.21/1,125,760.81 = 466,862.64/x
  3. Step 3: Cross multiply
    815,977.21x = 1,125,760.81 × 466,862.64
  4. Step 4: Simplify right side
    815,977.21x = 525,575,663,765.14
  5. Step 5: Solve for x
    x = 525,575,663,765.14/815,977.21
  6. Step 6: Final answer
    x = 644,105.81

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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.