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Finding the Fourth Proportional to 691,232.82, 953,956.62 and 385,408.32

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Solution

The fourth proportional to 691,232.82, 953,956.62 and 385,408.32 is: 531,894.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,232.82 : 953,956.62 = 385,408.32 : x
  2. Step 2: Convert to fraction form
    691,232.82/953,956.62 = 385,408.32/x
  3. Step 3: Cross multiply
    691,232.82x = 953,956.62 × 385,408.32
  4. Step 4: Simplify right side
    691,232.82x = 367,662,818,267.08
  5. Step 5: Solve for x
    x = 367,662,818,267.08/691,232.82
  6. Step 6: Final answer
    x = 531,894.33

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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.