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Finding the Fourth Proportional to 555,735.03, 766,915.10 and 301,086.21

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Solution

The fourth proportional to 555,735.03, 766,915.10 and 301,086.21 is: 415,499.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,735.03 : 766,915.10 = 301,086.21 : x
  2. Step 2: Convert to fraction form
    555,735.03/766,915.10 = 301,086.21/x
  3. Step 3: Cross multiply
    555,735.03x = 766,915.10 × 301,086.21
  4. Step 4: Simplify right side
    555,735.03x = 230,907,561,262.63
  5. Step 5: Solve for x
    x = 230,907,561,262.63/555,735.03
  6. Step 6: Final answer
    x = 415,499.39

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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.