Home / 985,488.03-1,359,960.77-555,906.56

Finding the Fourth Proportional to 985,488.03, 1,359,960.77 and 555,906.56

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Solution

The fourth proportional to 985,488.03, 1,359,960.77 and 555,906.56 is: 767,143.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,488.03 : 1,359,960.77 = 555,906.56 : x
  2. Step 2: Convert to fraction form
    985,488.03/1,359,960.77 = 555,906.56/x
  3. Step 3: Cross multiply
    985,488.03x = 1,359,960.77 × 555,906.56
  4. Step 4: Simplify right side
    985,488.03x = 756,011,107,975.61
  5. Step 5: Solve for x
    x = 756,011,107,975.61/985,488.03
  6. Step 6: Final answer
    x = 767,143.88

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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.