Home / 628,763.84-867,694.23-342,283.85

Finding the Fourth Proportional to 628,763.84, 867,694.23 and 342,283.85

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Solution

The fourth proportional to 628,763.84, 867,694.23 and 342,283.85 is: 472,351.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,763.84 : 867,694.23 = 342,283.85 : x
  2. Step 2: Convert to fraction form
    628,763.84/867,694.23 = 342,283.85/x
  3. Step 3: Cross multiply
    628,763.84x = 867,694.23 × 342,283.85
  4. Step 4: Simplify right side
    628,763.84x = 296,997,716,473.01
  5. Step 5: Solve for x
    x = 296,997,716,473.01/628,763.84
  6. Step 6: Final answer
    x = 472,351.78

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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.