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Finding the Fourth Proportional to 999,889.38, 1,499,950.98 and 351,266.49

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Solution

The fourth proportional to 999,889.38, 1,499,950.98 and 351,266.49 is: 526,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,889.38 : 1,499,950.98 = 351,266.49 : x
  2. Step 2: Convert to fraction form
    999,889.38/1,499,950.98 = 351,266.49/x
  3. Step 3: Cross multiply
    999,889.38x = 1,499,950.98 × 351,266.49
  4. Step 4: Simplify right side
    999,889.38x = 526,882,515,916.66
  5. Step 5: Solve for x
    x = 526,882,515,916.66/999,889.38
  6. Step 6: Final answer
    x = 526,940.81

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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.