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Finding the Fourth Proportional to 492,100.29, 679,081.77 and 301,113.68

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Solution

The fourth proportional to 492,100.29, 679,081.77 and 301,113.68 is: 415,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,100.29 : 679,081.77 = 301,113.68 : x
  2. Step 2: Convert to fraction form
    492,100.29/679,081.77 = 301,113.68/x
  3. Step 3: Cross multiply
    492,100.29x = 679,081.77 × 301,113.68
  4. Step 4: Simplify right side
    492,100.29x = 204,480,807,390.21
  5. Step 5: Solve for x
    x = 204,480,807,390.21/492,100.29
  6. Step 6: Final answer
    x = 415,526.70

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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.