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Finding the Fourth Proportional to 719,026.82, 992,277.79 and 396,757.67

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Solution

The fourth proportional to 719,026.82, 992,277.79 and 396,757.67 is: 547,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,026.82 : 992,277.79 = 396,757.67 : x
  2. Step 2: Convert to fraction form
    719,026.82/992,277.79 = 396,757.67/x
  3. Step 3: Cross multiply
    719,026.82x = 992,277.79 × 396,757.67
  4. Step 4: Simplify right side
    719,026.82x = 393,693,825,441.95
  5. Step 5: Solve for x
    x = 393,693,825,441.95/719,026.82
  6. Step 6: Final answer
    x = 547,537.05

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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.