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Finding the Fourth Proportional to 655,781.58, 905,024.88 and 365,412.39

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Solution

The fourth proportional to 655,781.58, 905,024.88 and 365,412.39 is: 504,294.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,781.58 : 905,024.88 = 365,412.39 : x
  2. Step 2: Convert to fraction form
    655,781.58/905,024.88 = 365,412.39/x
  3. Step 3: Cross multiply
    655,781.58x = 905,024.88 × 365,412.39
  4. Step 4: Simplify right side
    655,781.58x = 330,707,304,410.26
  5. Step 5: Solve for x
    x = 330,707,304,410.26/655,781.58
  6. Step 6: Final answer
    x = 504,294.90

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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.