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Finding the Fourth Proportional to 528,295.72, 729,588.72 and 494,440.96

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Solution

The fourth proportional to 528,295.72, 729,588.72 and 494,440.96 is: 682,834.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,295.72 : 729,588.72 = 494,440.96 : x
  2. Step 2: Convert to fraction form
    528,295.72/729,588.72 = 494,440.96/x
  3. Step 3: Cross multiply
    528,295.72x = 729,588.72 × 494,440.96
  4. Step 4: Simplify right side
    528,295.72x = 360,738,547,121.97
  5. Step 5: Solve for x
    x = 360,738,547,121.97/528,295.72
  6. Step 6: Final answer
    x = 682,834.51

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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.