Home / 1,287,583.20-1,930,606.80-789,304.80

Finding the Fourth Proportional to 1,287,583.20, 1,930,606.80 and 789,304.80

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Solution

The fourth proportional to 1,287,583.20, 1,930,606.80 and 789,304.80 is: 1,183,486.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,583.20 : 1,930,606.80 = 789,304.80 : x
  2. Step 2: Convert to fraction form
    1,287,583.20/1,930,606.80 = 789,304.80/x
  3. Step 3: Cross multiply
    1,287,583.20x = 1,930,606.80 × 789,304.80
  4. Step 4: Simplify right side
    1,287,583.20x = 1,523,837,214,152.64
  5. Step 5: Solve for x
    x = 1,523,837,214,152.64/1,287,583.20
  6. Step 6: Final answer
    x = 1,183,486.41

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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.