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Finding the Fourth Proportional to 523,702.00, 722,739.72 and 394,412.43

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Solution

The fourth proportional to 523,702.00, 722,739.72 and 394,412.43 is: 544,312.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,702.00 : 722,739.72 = 394,412.43 : x
  2. Step 2: Convert to fraction form
    523,702.00/722,739.72 = 394,412.43/x
  3. Step 3: Cross multiply
    523,702.00x = 722,739.72 × 394,412.43
  4. Step 4: Simplify right side
    523,702.00x = 285,057,529,222.72
  5. Step 5: Solve for x
    x = 285,057,529,222.72/523,702.00
  6. Step 6: Final answer
    x = 544,312.48

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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.