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Finding the Fourth Proportional to 520,468.93, 780,171.67 and 295,353.91

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Solution

The fourth proportional to 520,468.93, 780,171.67 and 295,353.91 is: 442,729.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,468.93 : 780,171.67 = 295,353.91 : x
  2. Step 2: Convert to fraction form
    520,468.93/780,171.67 = 295,353.91/x
  3. Step 3: Cross multiply
    520,468.93x = 780,171.67 × 295,353.91
  4. Step 4: Simplify right side
    520,468.93x = 230,426,753,205.73
  5. Step 5: Solve for x
    x = 230,426,753,205.73/520,468.93
  6. Step 6: Final answer
    x = 442,729.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.