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Finding the Fourth Proportional to 719,336.67, 992,684.67 and 397,046.85

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Solution

The fourth proportional to 719,336.67, 992,684.67 and 397,046.85 is: 547,924.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,336.67 : 992,684.67 = 397,046.85 : x
  2. Step 2: Convert to fraction form
    719,336.67/992,684.67 = 397,046.85/x
  3. Step 3: Cross multiply
    719,336.67x = 992,684.67 × 397,046.85
  4. Step 4: Simplify right side
    719,336.67x = 394,142,321,266.79
  5. Step 5: Solve for x
    x = 394,142,321,266.79/719,336.67
  6. Step 6: Final answer
    x = 547,924.69

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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.