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Finding the Fourth Proportional to 628,604.44, 867,471.54 and 342,124.48

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Solution

The fourth proportional to 628,604.44, 867,471.54 and 342,124.48 is: 472,130.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,604.44 : 867,471.54 = 342,124.48 : x
  2. Step 2: Convert to fraction form
    628,604.44/867,471.54 = 342,124.48/x
  3. Step 3: Cross multiply
    628,604.44x = 867,471.54 × 342,124.48
  4. Step 4: Simplify right side
    628,604.44x = 296,783,249,537.30
  5. Step 5: Solve for x
    x = 296,783,249,537.30/628,604.44
  6. Step 6: Final answer
    x = 472,130.37

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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.