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Finding the Fourth Proportional to 538,552.11, 808,877.93 and 438,786.03

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Solution

The fourth proportional to 538,552.11, 808,877.93 and 438,786.03 is: 659,034.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,552.11 : 808,877.93 = 438,786.03 : x
  2. Step 2: Convert to fraction form
    538,552.11/808,877.93 = 438,786.03/x
  3. Step 3: Cross multiply
    538,552.11x = 808,877.93 × 438,786.03
  4. Step 4: Simplify right side
    538,552.11x = 354,924,333,465.39
  5. Step 5: Solve for x
    x = 354,924,333,465.39/538,552.11
  6. Step 6: Final answer
    x = 659,034.34

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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.