Home / 1,326,760.09-1,989,755.28-516,963.87

Finding the Fourth Proportional to 1,326,760.09, 1,989,755.28 and 516,963.87

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Solution

The fourth proportional to 1,326,760.09, 1,989,755.28 and 516,963.87 is: 775,295.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,760.09 : 1,989,755.28 = 516,963.87 : x
  2. Step 2: Convert to fraction form
    1,326,760.09/1,989,755.28 = 516,963.87/x
  3. Step 3: Cross multiply
    1,326,760.09x = 1,989,755.28 × 516,963.87
  4. Step 4: Simplify right side
    1,326,760.09x = 1,028,631,599,301.93
  5. Step 5: Solve for x
    x = 1,028,631,599,301.93/1,326,760.09
  6. Step 6: Final answer
    x = 775,295.85

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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.