Home / 939,943.30-1,297,120.65-510,223.43

Finding the Fourth Proportional to 939,943.30, 1,297,120.65 and 510,223.43

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Solution

The fourth proportional to 939,943.30, 1,297,120.65 and 510,223.43 is: 704,107.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,943.30 : 1,297,120.65 = 510,223.43 : x
  2. Step 2: Convert to fraction form
    939,943.30/1,297,120.65 = 510,223.43/x
  3. Step 3: Cross multiply
    939,943.30x = 1,297,120.65 × 510,223.43
  4. Step 4: Simplify right side
    939,943.30x = 661,821,347,166.83
  5. Step 5: Solve for x
    x = 661,821,347,166.83/939,943.30
  6. Step 6: Final answer
    x = 704,107.73

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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.