Home / 691,644.72-1,035,308.16-509,480.89

Finding the Fourth Proportional to 691,644.72, 1,035,308.16 and 509,480.89

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Solution

The fourth proportional to 691,644.72, 1,035,308.16 and 509,480.89 is: 762,631.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,644.72 : 1,035,308.16 = 509,480.89 : x
  2. Step 2: Convert to fraction form
    691,644.72/1,035,308.16 = 509,480.89/x
  3. Step 3: Cross multiply
    691,644.72x = 1,035,308.16 × 509,480.89
  4. Step 4: Simplify right side
    691,644.72x = 527,469,718,759.88
  5. Step 5: Solve for x
    x = 527,469,718,759.88/691,644.72
  6. Step 6: Final answer
    x = 762,631.02

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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.