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Finding the Fourth Proportional to 458,383.05, 687,559.46 and 188,501.85

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Solution

The fourth proportional to 458,383.05, 687,559.46 and 188,501.85 is: 282,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,383.05 : 687,559.46 = 188,501.85 : x
  2. Step 2: Convert to fraction form
    458,383.05/687,559.46 = 188,501.85/x
  3. Step 3: Cross multiply
    458,383.05x = 687,559.46 × 188,501.85
  4. Step 4: Simplify right side
    458,383.05x = 129,606,229,252.49
  5. Step 5: Solve for x
    x = 129,606,229,252.49/458,383.05
  6. Step 6: Final answer
    x = 282,746.56

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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.