Home / 939,815.67-1,296,942.37-510,095.80

Finding the Fourth Proportional to 939,815.67, 1,296,942.37 and 510,095.80

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Solution

The fourth proportional to 939,815.67, 1,296,942.37 and 510,095.80 is: 703,930.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,815.67 : 1,296,942.37 = 510,095.80 : x
  2. Step 2: Convert to fraction form
    939,815.67/1,296,942.37 = 510,095.80/x
  3. Step 3: Cross multiply
    939,815.67x = 1,296,942.37 × 510,095.80
  4. Step 4: Simplify right side
    939,815.67x = 661,564,855,779.05
  5. Step 5: Solve for x
    x = 661,564,855,779.05/939,815.67
  6. Step 6: Final answer
    x = 703,930.44

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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.