Home / 3,131,545.60-4,697,145.04-856,906.72

Finding the Fourth Proportional to 3,131,545.60, 4,697,145.04 and 856,906.72

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Solution

The fourth proportional to 3,131,545.60, 4,697,145.04 and 856,906.72 is: 1,285,312.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,545.60 : 4,697,145.04 = 856,906.72 : x
  2. Step 2: Convert to fraction form
    3,131,545.60/4,697,145.04 = 856,906.72/x
  3. Step 3: Cross multiply
    3,131,545.60x = 4,697,145.04 × 856,906.72
  4. Step 4: Simplify right side
    3,131,545.60x = 4,025,015,149,590.67
  5. Step 5: Solve for x
    x = 4,025,015,149,590.67/3,131,545.60
  6. Step 6: Final answer
    x = 1,285,312.64

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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.