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Finding the Fourth Proportional to 560,517.86, 773,531.10 and 305,885.48

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Solution

The fourth proportional to 560,517.86, 773,531.10 and 305,885.48 is: 422,130.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,517.86 : 773,531.10 = 305,885.48 : x
  2. Step 2: Convert to fraction form
    560,517.86/773,531.10 = 305,885.48/x
  3. Step 3: Cross multiply
    560,517.86x = 773,531.10 × 305,885.48
  4. Step 4: Simplify right side
    560,517.86x = 236,611,931,818.43
  5. Step 5: Solve for x
    x = 236,611,931,818.43/560,517.86
  6. Step 6: Final answer
    x = 422,130.94

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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.