Home / 753,021.88-1,129,282.24-303,626.68

Finding the Fourth Proportional to 753,021.88, 1,129,282.24 and 303,626.68

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Solution

The fourth proportional to 753,021.88, 1,129,282.24 and 303,626.68 is: 455,338.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,021.88 : 1,129,282.24 = 303,626.68 : x
  2. Step 2: Convert to fraction form
    753,021.88/1,129,282.24 = 303,626.68/x
  3. Step 3: Cross multiply
    753,021.88x = 1,129,282.24 × 303,626.68
  4. Step 4: Simplify right side
    753,021.88x = 342,880,217,314.16
  5. Step 5: Solve for x
    x = 342,880,217,314.16/753,021.88
  6. Step 6: Final answer
    x = 455,338.98

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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.