Home / 528,960.03-729,942.42-299,529.87

Finding the Fourth Proportional to 528,960.03, 729,942.42 and 299,529.87

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Solution

The fourth proportional to 528,960.03, 729,942.42 and 299,529.87 is: 413,338.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,960.03 : 729,942.42 = 299,529.87 : x
  2. Step 2: Convert to fraction form
    528,960.03/729,942.42 = 299,529.87/x
  3. Step 3: Cross multiply
    528,960.03x = 729,942.42 × 299,529.87
  4. Step 4: Simplify right side
    528,960.03x = 218,639,558,170.09
  5. Step 5: Solve for x
    x = 218,639,558,170.09/528,960.03
  6. Step 6: Final answer
    x = 413,338.52

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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.