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Finding the Fourth Proportional to 438,798.02, 658,322.46 and 259,047.45

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Solution

The fourth proportional to 438,798.02, 658,322.46 and 259,047.45 is: 388,645.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,798.02 : 658,322.46 = 259,047.45 : x
  2. Step 2: Convert to fraction form
    438,798.02/658,322.46 = 259,047.45/x
  3. Step 3: Cross multiply
    438,798.02x = 658,322.46 × 259,047.45
  4. Step 4: Simplify right side
    438,798.02x = 170,536,754,540.73
  5. Step 5: Solve for x
    x = 170,536,754,540.73/438,798.02
  6. Step 6: Final answer
    x = 388,645.23

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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.