Home / 1,993,288.60-2,989,932.90-928,438.30

Finding the Fourth Proportional to 1,993,288.60, 2,989,932.90 and 928,438.30

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Solution

The fourth proportional to 1,993,288.60, 2,989,932.90 and 928,438.30 is: 1,392,657.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,288.60 : 2,989,932.90 = 928,438.30 : x
  2. Step 2: Convert to fraction form
    1,993,288.60/2,989,932.90 = 928,438.30/x
  3. Step 3: Cross multiply
    1,993,288.60x = 2,989,932.90 × 928,438.30
  4. Step 4: Simplify right side
    1,993,288.60x = 2,775,968,218,790.07
  5. Step 5: Solve for x
    x = 2,775,968,218,790.07/1,993,288.60
  6. Step 6: Final answer
    x = 1,392,657.45

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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.