Home / 628,486.20-867,329.04-342,024.43

Finding the Fourth Proportional to 628,486.20, 867,329.04 and 342,024.43

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Solution

The fourth proportional to 628,486.20, 867,329.04 and 342,024.43 is: 472,003.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,486.20 : 867,329.04 = 342,024.43 : x
  2. Step 2: Convert to fraction form
    628,486.20/867,329.04 = 342,024.43/x
  3. Step 3: Cross multiply
    628,486.20x = 867,329.04 × 342,024.43
  4. Step 4: Simplify right side
    628,486.20x = 296,647,720,528.45
  5. Step 5: Solve for x
    x = 296,647,720,528.45/628,486.20
  6. Step 6: Final answer
    x = 472,003.56

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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.