Home / 999,082.09-1,378,418.52-611,493.45

Finding the Fourth Proportional to 999,082.09, 1,378,418.52 and 611,493.45

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Solution

The fourth proportional to 999,082.09, 1,378,418.52 and 611,493.45 is: 843,668.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,082.09 : 1,378,418.52 = 611,493.45 : x
  2. Step 2: Convert to fraction form
    999,082.09/1,378,418.52 = 611,493.45/x
  3. Step 3: Cross multiply
    999,082.09x = 1,378,418.52 × 611,493.45
  4. Step 4: Simplify right side
    999,082.09x = 842,893,896,338.69
  5. Step 5: Solve for x
    x = 842,893,896,338.69/999,082.09
  6. Step 6: Final answer
    x = 843,668.31

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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.