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Finding the Fourth Proportional to 620,611.40, 930,917.10 and 246,634.40

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Solution

The fourth proportional to 620,611.40, 930,917.10 and 246,634.40 is: 369,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,611.40 : 930,917.10 = 246,634.40 : x
  2. Step 2: Convert to fraction form
    620,611.40/930,917.10 = 246,634.40/x
  3. Step 3: Cross multiply
    620,611.40x = 930,917.10 × 246,634.40
  4. Step 4: Simplify right side
    620,611.40x = 229,596,180,408.24
  5. Step 5: Solve for x
    x = 229,596,180,408.24/620,611.40
  6. Step 6: Final answer
    x = 369,951.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.