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Finding the Fourth Proportional to 425,542.50, 637,883.18 and 275,877.89

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Solution

The fourth proportional to 425,542.50, 637,883.18 and 275,877.89 is: 413,537.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,542.50 : 637,883.18 = 275,877.89 : x
  2. Step 2: Convert to fraction form
    425,542.50/637,883.18 = 275,877.89/x
  3. Step 3: Cross multiply
    425,542.50x = 637,883.18 × 275,877.89
  4. Step 4: Simplify right side
    425,542.50x = 175,977,861,196.09
  5. Step 5: Solve for x
    x = 175,977,861,196.09/425,542.50
  6. Step 6: Final answer
    x = 413,537.69

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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.