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Finding the Fourth Proportional to 707,294.88, 976,065.84 and 385,003.98

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Solution

The fourth proportional to 707,294.88, 976,065.84 and 385,003.98 is: 531,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,294.88 : 976,065.84 = 385,003.98 : x
  2. Step 2: Convert to fraction form
    707,294.88/976,065.84 = 385,003.98/x
  3. Step 3: Cross multiply
    707,294.88x = 976,065.84 × 385,003.98
  4. Step 4: Simplify right side
    707,294.88x = 375,789,233,142.04
  5. Step 5: Solve for x
    x = 375,789,233,142.04/707,294.88
  6. Step 6: Final answer
    x = 531,304.90

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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.