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Finding the Fourth Proportional to 643,850.67, 964,513.38 and 373,410.67

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Solution

The fourth proportional to 643,850.67, 964,513.38 and 373,410.67 is: 559,383.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,850.67 : 964,513.38 = 373,410.67 : x
  2. Step 2: Convert to fraction form
    643,850.67/964,513.38 = 373,410.67/x
  3. Step 3: Cross multiply
    643,850.67x = 964,513.38 × 373,410.67
  4. Step 4: Simplify right side
    643,850.67x = 360,159,587,449.77
  5. Step 5: Solve for x
    x = 360,159,587,449.77/643,850.67
  6. Step 6: Final answer
    x = 559,383.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.