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Finding the Fourth Proportional to 617,672.50, 925,302.11 and 425,513.03

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Solution

The fourth proportional to 617,672.50, 925,302.11 and 425,513.03 is: 637,438.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,672.50 : 925,302.11 = 425,513.03 : x
  2. Step 2: Convert to fraction form
    617,672.50/925,302.11 = 425,513.03/x
  3. Step 3: Cross multiply
    617,672.50x = 925,302.11 × 425,513.03
  4. Step 4: Simplify right side
    617,672.50x = 393,728,101,207.30
  5. Step 5: Solve for x
    x = 393,728,101,207.30/617,672.50
  6. Step 6: Final answer
    x = 637,438.29

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1.5x scale

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.