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Finding the Fourth Proportional to 528,292.72, 729,584.58 and 494,437.96

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Solution

The fourth proportional to 528,292.72, 729,584.58 and 494,437.96 is: 682,830.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,292.72 : 729,584.58 = 494,437.96 : x
  2. Step 2: Convert to fraction form
    528,292.72/729,584.58 = 494,437.96/x
  3. Step 3: Cross multiply
    528,292.72x = 729,584.58 × 494,437.96
  4. Step 4: Simplify right side
    528,292.72x = 360,734,311,382.66
  5. Step 5: Solve for x
    x = 360,734,311,382.66/528,292.72
  6. Step 6: Final answer
    x = 682,830.37

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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.