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Finding the Fourth Proportional to 722,133.37, 996,559.68 and 395,460.25

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Solution

The fourth proportional to 722,133.37, 996,559.68 and 395,460.25 is: 545,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,133.37 : 996,559.68 = 395,460.25 : x
  2. Step 2: Convert to fraction form
    722,133.37/996,559.68 = 395,460.25/x
  3. Step 3: Cross multiply
    722,133.37x = 996,559.68 × 395,460.25
  4. Step 4: Simplify right side
    722,133.37x = 394,099,740,192.72
  5. Step 5: Solve for x
    x = 394,099,740,192.72/722,133.37
  6. Step 6: Final answer
    x = 545,743.70

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1.5x scale

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.