Home / 999,769.17-1,378,246.01-712,791.21

Finding the Fourth Proportional to 999,769.17, 1,378,246.01 and 712,791.21

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Solution

The fourth proportional to 999,769.17, 1,378,246.01 and 712,791.21 is: 982,628.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,769.17 : 1,378,246.01 = 712,791.21 : x
  2. Step 2: Convert to fraction form
    999,769.17/1,378,246.01 = 712,791.21/x
  3. Step 3: Cross multiply
    999,769.17x = 1,378,246.01 × 712,791.21
  4. Step 4: Simplify right side
    999,769.17x = 982,401,637,581.62
  5. Step 5: Solve for x
    x = 982,401,637,581.62/999,769.17
  6. Step 6: Final answer
    x = 982,628.46

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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.