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Finding the Fourth Proportional to 521,883.64, 720,199.41 and 295,572.88

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Solution

The fourth proportional to 521,883.64, 720,199.41 and 295,572.88 is: 407,890.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,883.64 : 720,199.41 = 295,572.88 : x
  2. Step 2: Convert to fraction form
    521,883.64/720,199.41 = 295,572.88/x
  3. Step 3: Cross multiply
    521,883.64x = 720,199.41 × 295,572.88
  4. Step 4: Simplify right side
    521,883.64x = 212,871,413,788.00
  5. Step 5: Solve for x
    x = 212,871,413,788.00/521,883.64
  6. Step 6: Final answer
    x = 407,890.57

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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.