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Finding the Fourth Proportional to 702,365.18, 969,307.88 and 396,493.38

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Solution

The fourth proportional to 702,365.18, 969,307.88 and 396,493.38 is: 547,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,365.18 : 969,307.88 = 396,493.38 : x
  2. Step 2: Convert to fraction form
    702,365.18/969,307.88 = 396,493.38/x
  3. Step 3: Cross multiply
    702,365.18x = 969,307.88 × 396,493.38
  4. Step 4: Simplify right side
    702,365.18x = 384,324,155,619.37
  5. Step 5: Solve for x
    x = 384,324,155,619.37/702,365.18
  6. Step 6: Final answer
    x = 547,185.67

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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.