Home / 987,121.31-1,362,102.23-579,074.27

Finding the Fourth Proportional to 987,121.31, 1,362,102.23 and 579,074.27

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Solution

The fourth proportional to 987,121.31, 1,362,102.23 and 579,074.27 is: 799,049.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,121.31 : 1,362,102.23 = 579,074.27 : x
  2. Step 2: Convert to fraction form
    987,121.31/1,362,102.23 = 579,074.27/x
  3. Step 3: Cross multiply
    987,121.31x = 1,362,102.23 × 579,074.27
  4. Step 4: Simplify right side
    987,121.31x = 788,758,349,139.80
  5. Step 5: Solve for x
    x = 788,758,349,139.80/987,121.31
  6. Step 6: Final answer
    x = 799,049.06

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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.