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Finding the Fourth Proportional to 560,306.82, 773,260 and 318,611.94

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Solution

The fourth proportional to 560,306.82, 773,260 and 318,611.94 is: 439,705.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,306.82 : 773,260 = 318,611.94 : x
  2. Step 2: Convert to fraction form
    560,306.82/773,260 = 318,611.94/x
  3. Step 3: Cross multiply
    560,306.82x = 773,260 × 318,611.94
  4. Step 4: Simplify right side
    560,306.82x = 246,369,868,724.40
  5. Step 5: Solve for x
    x = 246,369,868,724.40/560,306.82
  6. Step 6: Final answer
    x = 439,705.28

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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.