Home / 986,765.28-1,361,771.40-557,121.84

Finding the Fourth Proportional to 986,765.28, 1,361,771.40 and 557,121.84

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Solution

The fourth proportional to 986,765.28, 1,361,771.40 and 557,121.84 is: 768,848.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,765.28 : 1,361,771.40 = 557,121.84 : x
  2. Step 2: Convert to fraction form
    986,765.28/1,361,771.40 = 557,121.84/x
  3. Step 3: Cross multiply
    986,765.28x = 1,361,771.40 × 557,121.84
  4. Step 4: Simplify right side
    986,765.28x = 758,672,588,027.38
  5. Step 5: Solve for x
    x = 758,672,588,027.38/986,765.28
  6. Step 6: Final answer
    x = 768,848.08

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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.