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Finding the Fourth Proportional to 521,383.12, 719,567.22 and 295,043.20

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Solution

The fourth proportional to 521,383.12, 719,567.22 and 295,043.20 is: 407,192.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,383.12 : 719,567.22 = 295,043.20 : x
  2. Step 2: Convert to fraction form
    521,383.12/719,567.22 = 295,043.20/x
  3. Step 3: Cross multiply
    521,383.12x = 719,567.22 × 295,043.20
  4. Step 4: Simplify right side
    521,383.12x = 212,303,415,203.90
  5. Step 5: Solve for x
    x = 212,303,415,203.90/521,383.12
  6. Step 6: Final answer
    x = 407,192.73

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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.