Home / 2,989,672.80-4,484,509.20-1,979,934.90

Finding the Fourth Proportional to 2,989,672.80, 4,484,509.20 and 1,979,934.90

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Solution

The fourth proportional to 2,989,672.80, 4,484,509.20 and 1,979,934.90 is: 2,969,902.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,672.80 : 4,484,509.20 = 1,979,934.90 : x
  2. Step 2: Convert to fraction form
    2,989,672.80/4,484,509.20 = 1,979,934.90/x
  3. Step 3: Cross multiply
    2,989,672.80x = 4,484,509.20 × 1,979,934.90
  4. Step 4: Simplify right side
    2,989,672.80x = 8,879,036,274,451.08
  5. Step 5: Solve for x
    x = 8,879,036,274,451.08/2,989,672.80
  6. Step 6: Final answer
    x = 2,969,902.35

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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.