Home / 1,992,912.30-2,989,368.45-730,575.90

Finding the Fourth Proportional to 1,992,912.30, 2,989,368.45 and 730,575.90

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Solution

The fourth proportional to 1,992,912.30, 2,989,368.45 and 730,575.90 is: 1,095,863.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,912.30 : 2,989,368.45 = 730,575.90 : x
  2. Step 2: Convert to fraction form
    1,992,912.30/2,989,368.45 = 730,575.90/x
  3. Step 3: Cross multiply
    1,992,912.30x = 2,989,368.45 × 730,575.90
  4. Step 4: Simplify right side
    1,992,912.30x = 2,183,960,545,790.36
  5. Step 5: Solve for x
    x = 2,183,960,545,790.36/1,992,912.30
  6. Step 6: Final answer
    x = 1,095,863.85

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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.