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Finding the Fourth Proportional to 475,122.65, 711,027.24 and 388,735.12

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Solution

The fourth proportional to 475,122.65, 711,027.24 and 388,735.12 is: 581,747.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,122.65 : 711,027.24 = 388,735.12 : x
  2. Step 2: Convert to fraction form
    475,122.65/711,027.24 = 388,735.12/x
  3. Step 3: Cross multiply
    475,122.65x = 711,027.24 × 388,735.12
  4. Step 4: Simplify right side
    475,122.65x = 276,401,259,464.67
  5. Step 5: Solve for x
    x = 276,401,259,464.67/475,122.65
  6. Step 6: Final answer
    x = 581,747.18

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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.