Home / 1,379,189.10-2,068,762.88-620,494.80

Finding the Fourth Proportional to 1,379,189.10, 2,068,762.88 and 620,494.80

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Solution

The fourth proportional to 1,379,189.10, 2,068,762.88 and 620,494.80 is: 930,732.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,189.10 : 2,068,762.88 = 620,494.80 : x
  2. Step 2: Convert to fraction form
    1,379,189.10/2,068,762.88 = 620,494.80/x
  3. Step 3: Cross multiply
    1,379,189.10x = 2,068,762.88 × 620,494.80
  4. Step 4: Simplify right side
    1,379,189.10x = 1,283,656,609,473.02
  5. Step 5: Solve for x
    x = 1,283,656,609,473.02/1,379,189.10
  6. Step 6: Final answer
    x = 930,732.86

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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.