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Finding the Fourth Proportional to 560,517.50, 773,530.56 and 305,885.10

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Solution

The fourth proportional to 560,517.50, 773,530.56 and 305,885.10 is: 422,130.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,517.50 : 773,530.56 = 305,885.10 : x
  2. Step 2: Convert to fraction form
    560,517.50/773,530.56 = 305,885.10/x
  3. Step 3: Cross multiply
    560,517.50x = 773,530.56 × 305,885.10
  4. Step 4: Simplify right side
    560,517.50x = 236,611,472,698.66
  5. Step 5: Solve for x
    x = 236,611,472,698.66/560,517.50
  6. Step 6: Final answer
    x = 422,130.39

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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.