Home / 628,735.23-867,654.73-342,257.47

Finding the Fourth Proportional to 628,735.23, 867,654.73 and 342,257.47

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Solution

The fourth proportional to 628,735.23, 867,654.73 and 342,257.47 is: 472,315.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,735.23 : 867,654.73 = 342,257.47 : x
  2. Step 2: Convert to fraction form
    628,735.23/867,654.73 = 342,257.47/x
  3. Step 3: Cross multiply
    628,735.23x = 867,654.73 × 342,257.47
  4. Step 4: Simplify right side
    628,735.23x = 296,961,312,723.33
  5. Step 5: Solve for x
    x = 296,961,312,723.33/628,735.23
  6. Step 6: Final answer
    x = 472,315.37

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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.