Home / 628,610.84-867,501.35-342,149.48

Finding the Fourth Proportional to 628,610.84, 867,501.35 and 342,149.48

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Solution

The fourth proportional to 628,610.84, 867,501.35 and 342,149.48 is: 472,176.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,610.84 : 867,501.35 = 342,149.48 : x
  2. Step 2: Convert to fraction form
    628,610.84/867,501.35 = 342,149.48/x
  3. Step 3: Cross multiply
    628,610.84x = 867,501.35 × 342,149.48
  4. Step 4: Simplify right side
    628,610.84x = 296,815,135,801.80
  5. Step 5: Solve for x
    x = 296,815,135,801.80/628,610.84
  6. Step 6: Final answer
    x = 472,176.29

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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.