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Finding the Fourth Proportional to 641,214.60, 963,204.30 and 617,713.80

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Solution

The fourth proportional to 641,214.60, 963,204.30 and 617,713.80 is: 927,902.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,214.60 : 963,204.30 = 617,713.80 : x
  2. Step 2: Convert to fraction form
    641,214.60/963,204.30 = 617,713.80/x
  3. Step 3: Cross multiply
    641,214.60x = 963,204.30 × 617,713.80
  4. Step 4: Simplify right side
    641,214.60x = 594,984,588,329.34
  5. Step 5: Solve for x
    x = 594,984,588,329.34/641,214.60
  6. Step 6: Final answer
    x = 927,902.43

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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.