Home / 999,766.17-1,378,241.87-712,788.21

Finding the Fourth Proportional to 999,766.17, 1,378,241.87 and 712,788.21

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Solution

The fourth proportional to 999,766.17, 1,378,241.87 and 712,788.21 is: 982,624.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,766.17 : 1,378,241.87 = 712,788.21 : x
  2. Step 2: Convert to fraction form
    999,766.17/1,378,241.87 = 712,788.21/x
  3. Step 3: Cross multiply
    999,766.17x = 1,378,241.87 × 712,788.21
  4. Step 4: Simplify right side
    999,766.17x = 982,394,551,900.41
  5. Step 5: Solve for x
    x = 982,394,551,900.41/999,766.17
  6. Step 6: Final answer
    x = 982,624.32

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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.