Home / 1,379,189.11-2,068,762.89-620,494.81

Finding the Fourth Proportional to 1,379,189.11, 2,068,762.89 and 620,494.81

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Solution

The fourth proportional to 1,379,189.11, 2,068,762.89 and 620,494.81 is: 930,732.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,189.11 : 2,068,762.89 = 620,494.81 : x
  2. Step 2: Convert to fraction form
    1,379,189.11/2,068,762.89 = 620,494.81/x
  3. Step 3: Cross multiply
    1,379,189.11x = 2,068,762.89 × 620,494.81
  4. Step 4: Simplify right side
    1,379,189.11x = 1,283,656,636,365.60
  5. Step 5: Solve for x
    x = 1,283,656,636,365.60/1,379,189.11
  6. Step 6: Final answer
    x = 930,732.87

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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.