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Finding the Fourth Proportional to 664,369.40, 996,554.10 and 243,590.60

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Solution

The fourth proportional to 664,369.40, 996,554.10 and 243,590.60 is: 365,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,369.40 : 996,554.10 = 243,590.60 : x
  2. Step 2: Convert to fraction form
    664,369.40/996,554.10 = 243,590.60/x
  3. Step 3: Cross multiply
    664,369.40x = 996,554.10 × 243,590.60
  4. Step 4: Simplify right side
    664,369.40x = 242,751,211,151.46
  5. Step 5: Solve for x
    x = 242,751,211,151.46/664,369.40
  6. Step 6: Final answer
    x = 365,385.90

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Similar ratio
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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.