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Finding the Fourth Proportional to 719,117.33, 992,384.82 and 396,836.73

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Solution

The fourth proportional to 719,117.33, 992,384.82 and 396,836.73 is: 547,636.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,117.33 : 992,384.82 = 396,836.73 : x
  2. Step 2: Convert to fraction form
    719,117.33/992,384.82 = 396,836.73/x
  3. Step 3: Cross multiply
    719,117.33x = 992,384.82 × 396,836.73
  4. Step 4: Simplify right side
    719,117.33x = 393,814,746,870.44
  5. Step 5: Solve for x
    x = 393,814,746,870.44/719,117.33
  6. Step 6: Final answer
    x = 547,636.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.