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Finding the Fourth Proportional to 521,907.57, 720,220.73 and 304,102.67

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Solution

The fourth proportional to 521,907.57, 720,220.73 and 304,102.67 is: 419,654.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,907.57 : 720,220.73 = 304,102.67 : x
  2. Step 2: Convert to fraction form
    521,907.57/720,220.73 = 304,102.67/x
  3. Step 3: Cross multiply
    521,907.57x = 720,220.73 × 304,102.67
  4. Step 4: Simplify right side
    521,907.57x = 219,021,046,982.35
  5. Step 5: Solve for x
    x = 219,021,046,982.35/521,907.57
  6. Step 6: Final answer
    x = 419,654.86

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1.5x scale

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.