Home / 1,992,711.60-2,989,942.20-927,205.20

Finding the Fourth Proportional to 1,992,711.60, 2,989,942.20 and 927,205.20

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Solution

The fourth proportional to 1,992,711.60, 2,989,942.20 and 927,205.20 is: 1,391,214.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,711.60 : 2,989,942.20 = 927,205.20 : x
  2. Step 2: Convert to fraction form
    1,992,711.60/2,989,942.20 = 927,205.20/x
  3. Step 3: Cross multiply
    1,992,711.60x = 2,989,942.20 × 927,205.20
  4. Step 4: Simplify right side
    1,992,711.60x = 2,772,289,955,539.44
  5. Step 5: Solve for x
    x = 2,772,289,955,539.44/1,992,711.60
  6. Step 6: Final answer
    x = 1,391,214.84

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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.