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Finding the Fourth Proportional to 618,470.37, 925,638.48 and 352,159.41

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Solution

The fourth proportional to 618,470.37, 925,638.48 and 352,159.41 is: 527,062.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,470.37 : 925,638.48 = 352,159.41 : x
  2. Step 2: Convert to fraction form
    618,470.37/925,638.48 = 352,159.41/x
  3. Step 3: Cross multiply
    618,470.37x = 925,638.48 × 352,159.41
  4. Step 4: Simplify right side
    618,470.37x = 325,972,300,990.10
  5. Step 5: Solve for x
    x = 325,972,300,990.10/618,470.37
  6. Step 6: Final answer
    x = 527,062.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.