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Finding the Fourth Proportional to 576,017.92, 794,942.94 and 321,374.53

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Solution

The fourth proportional to 576,017.92, 794,942.94 and 321,374.53 is: 443,518.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,017.92 : 794,942.94 = 321,374.53 : x
  2. Step 2: Convert to fraction form
    576,017.92/794,942.94 = 321,374.53/x
  3. Step 3: Cross multiply
    576,017.92x = 794,942.94 × 321,374.53
  4. Step 4: Simplify right side
    576,017.92x = 255,474,413,719.32
  5. Step 5: Solve for x
    x = 255,474,413,719.32/576,017.92
  6. Step 6: Final answer
    x = 443,518.17

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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.