Home / 1,326,660.41-1,989,989.40-415,849.43

Finding the Fourth Proportional to 1,326,660.41, 1,989,989.40 and 415,849.43

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Solution

The fourth proportional to 1,326,660.41, 1,989,989.40 and 415,849.43 is: 623,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,660.41 : 1,989,989.40 = 415,849.43 : x
  2. Step 2: Convert to fraction form
    1,326,660.41/1,989,989.40 = 415,849.43/x
  3. Step 3: Cross multiply
    1,326,660.41x = 1,989,989.40 × 415,849.43
  4. Step 4: Simplify right side
    1,326,660.41x = 827,535,949,528.03
  5. Step 5: Solve for x
    x = 827,535,949,528.03/1,326,660.41
  6. Step 6: Final answer
    x = 623,773.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.