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Finding the Fourth Proportional to 425,777.26, 637,942.91 and 256,942.82

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Solution

The fourth proportional to 425,777.26, 637,942.91 and 256,942.82 is: 384,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,777.26 : 637,942.91 = 256,942.82 : x
  2. Step 2: Convert to fraction form
    425,777.26/637,942.91 = 256,942.82/x
  3. Step 3: Cross multiply
    425,777.26x = 637,942.91 × 256,942.82
  4. Step 4: Simplify right side
    425,777.26x = 163,914,851,257.94
  5. Step 5: Solve for x
    x = 163,914,851,257.94/425,777.26
  6. Step 6: Final answer
    x = 384,977.93

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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.