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Finding the Fourth Proportional to 555,771.60, 766,958.76 and 301,107.60

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Solution

The fourth proportional to 555,771.60, 766,958.76 and 301,107.60 is: 415,525.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,771.60 : 766,958.76 = 301,107.60 : x
  2. Step 2: Convert to fraction form
    555,771.60/766,958.76 = 301,107.60/x
  3. Step 3: Cross multiply
    555,771.60x = 766,958.76 × 301,107.60
  4. Step 4: Simplify right side
    555,771.60x = 230,937,111,522.58
  5. Step 5: Solve for x
    x = 230,937,111,522.58/555,771.60
  6. Step 6: Final answer
    x = 415,525.21

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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.