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Finding the Fourth Proportional to 423,658.89, 635,488.94 and 297,861.84

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Solution

The fourth proportional to 423,658.89, 635,488.94 and 297,861.84 is: 446,793.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,658.89 : 635,488.94 = 297,861.84 : x
  2. Step 2: Convert to fraction form
    423,658.89/635,488.94 = 297,861.84/x
  3. Step 3: Cross multiply
    423,658.89x = 635,488.94 × 297,861.84
  4. Step 4: Simplify right side
    423,658.89x = 189,287,905,712.70
  5. Step 5: Solve for x
    x = 189,287,905,712.70/423,658.89
  6. Step 6: Final answer
    x = 446,793.19

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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.