Home / 939,942.30-1,297,119.27-510,222.43

Finding the Fourth Proportional to 939,942.30, 1,297,119.27 and 510,222.43

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Solution

The fourth proportional to 939,942.30, 1,297,119.27 and 510,222.43 is: 704,106.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,942.30 : 1,297,119.27 = 510,222.43 : x
  2. Step 2: Convert to fraction form
    939,942.30/1,297,119.27 = 510,222.43/x
  3. Step 3: Cross multiply
    939,942.30x = 1,297,119.27 × 510,222.43
  4. Step 4: Simplify right side
    939,942.30x = 661,819,344,779.88
  5. Step 5: Solve for x
    x = 661,819,344,779.88/939,942.30
  6. Step 6: Final answer
    x = 704,106.35

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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.