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Finding the Fourth Proportional to 707,551.70, 976,408.69 and 385,255.94

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Solution

The fourth proportional to 707,551.70, 976,408.69 and 385,255.94 is: 531,646.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,551.70 : 976,408.69 = 385,255.94 : x
  2. Step 2: Convert to fraction form
    707,551.70/976,408.69 = 385,255.94/x
  3. Step 3: Cross multiply
    707,551.70x = 976,408.69 × 385,255.94
  4. Step 4: Simplify right side
    707,551.70x = 376,167,247,690.12
  5. Step 5: Solve for x
    x = 376,167,247,690.12/707,551.70
  6. Step 6: Final answer
    x = 531,646.31

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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.