Home / 862,939.36-1,294,992.24-301,978.72

Finding the Fourth Proportional to 862,939.36, 1,294,992.24 and 301,978.72

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Solution

The fourth proportional to 862,939.36, 1,294,992.24 and 301,978.72 is: 453,172.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,939.36 : 1,294,992.24 = 301,978.72 : x
  2. Step 2: Convert to fraction form
    862,939.36/1,294,992.24 = 301,978.72/x
  3. Step 3: Cross multiply
    862,939.36x = 1,294,992.24 × 301,978.72
  4. Step 4: Simplify right side
    862,939.36x = 391,060,099,045.13
  5. Step 5: Solve for x
    x = 391,060,099,045.13/862,939.36
  6. Step 6: Final answer
    x = 453,172.17

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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.