Home / 1,515,431.72-2,091,566.94-903,623.96

Finding the Fourth Proportional to 1,515,431.72, 2,091,566.94 and 903,623.96

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Solution

The fourth proportional to 1,515,431.72, 2,091,566.94 and 903,623.96 is: 1,247,162.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,431.72 : 2,091,566.94 = 903,623.96 : x
  2. Step 2: Convert to fraction form
    1,515,431.72/2,091,566.94 = 903,623.96/x
  3. Step 3: Cross multiply
    1,515,431.72x = 2,091,566.94 × 903,623.96
  4. Step 4: Simplify right side
    1,515,431.72x = 1,889,990,000,927.88
  5. Step 5: Solve for x
    x = 1,889,990,000,927.88/1,515,431.72
  6. Step 6: Final answer
    x = 1,247,162.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.