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Finding the Fourth Proportional to 521,327.82, 719,370.86 and 300,562.63

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Solution

The fourth proportional to 521,327.82, 719,370.86 and 300,562.63 is: 414,740.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,327.82 : 719,370.86 = 300,562.63 : x
  2. Step 2: Convert to fraction form
    521,327.82/719,370.86 = 300,562.63/x
  3. Step 3: Cross multiply
    521,327.82x = 719,370.86 × 300,562.63
  4. Step 4: Simplify right side
    521,327.82x = 216,215,997,626.96
  5. Step 5: Solve for x
    x = 216,215,997,626.96/521,327.82
  6. Step 6: Final answer
    x = 414,740.95

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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.