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Finding the Fourth Proportional to 648,000.49, 894,241.23 and 361,520.63

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Solution

The fourth proportional to 648,000.49, 894,241.23 and 361,520.63 is: 498,898.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,000.49 : 894,241.23 = 361,520.63 : x
  2. Step 2: Convert to fraction form
    648,000.49/894,241.23 = 361,520.63/x
  3. Step 3: Cross multiply
    648,000.49x = 894,241.23 × 361,520.63
  4. Step 4: Simplify right side
    648,000.49x = 323,286,652,841.58
  5. Step 5: Solve for x
    x = 323,286,652,841.58/648,000.49
  6. Step 6: Final answer
    x = 498,898.78

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Double scale
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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.