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Finding the Fourth Proportional to 529,851.39, 731,214.14 and 303,540.63

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Solution

The fourth proportional to 529,851.39, 731,214.14 and 303,540.63 is: 418,897.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,851.39 : 731,214.14 = 303,540.63 : x
  2. Step 2: Convert to fraction form
    529,851.39/731,214.14 = 303,540.63/x
  3. Step 3: Cross multiply
    529,851.39x = 731,214.14 × 303,540.63
  4. Step 4: Simplify right side
    529,851.39x = 221,953,199,202.81
  5. Step 5: Solve for x
    x = 221,953,199,202.81/529,851.39
  6. Step 6: Final answer
    x = 418,897.08

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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.