Home / 3,108,519.78-4,663,043.70-864,657.78

Finding the Fourth Proportional to 3,108,519.78, 4,663,043.70 and 864,657.78

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Solution

The fourth proportional to 3,108,519.78, 4,663,043.70 and 864,657.78 is: 1,297,060.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108,519.78 : 4,663,043.70 = 864,657.78 : x
  2. Step 2: Convert to fraction form
    3,108,519.78/4,663,043.70 = 864,657.78/x
  3. Step 3: Cross multiply
    3,108,519.78x = 4,663,043.70 × 864,657.78
  4. Step 4: Simplify right side
    3,108,519.78x = 4,031,937,013,684.99
  5. Step 5: Solve for x
    x = 4,031,937,013,684.99/3,108,519.78
  6. Step 6: Final answer
    x = 1,297,060.11

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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.