Home / 939,828.48-1,296,942.72-510,109.44

Finding the Fourth Proportional to 939,828.48, 1,296,942.72 and 510,109.44

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Solution

The fourth proportional to 939,828.48, 1,296,942.72 and 510,109.44 is: 703,939.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,828.48 : 1,296,942.72 = 510,109.44 : x
  2. Step 2: Convert to fraction form
    939,828.48/1,296,942.72 = 510,109.44/x
  3. Step 3: Cross multiply
    939,828.48x = 1,296,942.72 × 510,109.44
  4. Step 4: Simplify right side
    939,828.48x = 661,582,724,611.28
  5. Step 5: Solve for x
    x = 661,582,724,611.28/939,828.48
  6. Step 6: Final answer
    x = 703,939.86

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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.