Home / 3,280,623.20-4,920,934.80-2,986,690.40

Finding the Fourth Proportional to 3,280,623.20, 4,920,934.80 and 2,986,690.40

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Solution

The fourth proportional to 3,280,623.20, 4,920,934.80 and 2,986,690.40 is: 4,480,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,623.20 : 4,920,934.80 = 2,986,690.40 : x
  2. Step 2: Convert to fraction form
    3,280,623.20/4,920,934.80 = 2,986,690.40/x
  3. Step 3: Cross multiply
    3,280,623.20x = 4,920,934.80 × 2,986,690.40
  4. Step 4: Simplify right side
    3,280,623.20x = 14,697,308,726,185.92
  5. Step 5: Solve for x
    x = 14,697,308,726,185.92/3,280,623.20
  6. Step 6: Final answer
    x = 4,480,035.60

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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.