Home / 628,633.10-867,517.29-342,152.51

Finding the Fourth Proportional to 628,633.10, 867,517.29 and 342,152.51

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Solution

The fourth proportional to 628,633.10, 867,517.29 and 342,152.51 is: 472,172.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,633.10 : 867,517.29 = 342,152.51 : x
  2. Step 2: Convert to fraction form
    628,633.10/867,517.29 = 342,152.51/x
  3. Step 3: Cross multiply
    628,633.10x = 867,517.29 × 342,152.51
  4. Step 4: Simplify right side
    628,633.10x = 296,823,213,904.31
  5. Step 5: Solve for x
    x = 296,823,213,904.31/628,633.10
  6. Step 6: Final answer
    x = 472,172.42

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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.