Home / 1,986,884.88-2,980,771.75-724,712.50

Finding the Fourth Proportional to 1,986,884.88, 2,980,771.75 and 724,712.50

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Solution

The fourth proportional to 1,986,884.88, 2,980,771.75 and 724,712.50 is: 1,087,230.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,884.88 : 2,980,771.75 = 724,712.50 : x
  2. Step 2: Convert to fraction form
    1,986,884.88/2,980,771.75 = 724,712.50/x
  3. Step 3: Cross multiply
    1,986,884.88x = 2,980,771.75 × 724,712.50
  4. Step 4: Simplify right side
    1,986,884.88x = 2,160,202,551,503.73
  5. Step 5: Solve for x
    x = 2,160,202,551,503.73/1,986,884.88
  6. Step 6: Final answer
    x = 1,087,230.86

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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.