Home / 425,777.07-637,942.63-256,942.64

Finding the Fourth Proportional to 425,777.07, 637,942.63 and 256,942.64

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Solution

The fourth proportional to 425,777.07, 637,942.63 and 256,942.64 is: 384,977.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,777.07 : 637,942.63 = 256,942.64 : x
  2. Step 2: Convert to fraction form
    425,777.07/637,942.63 = 256,942.64/x
  3. Step 3: Cross multiply
    425,777.07x = 637,942.63 × 256,942.64
  4. Step 4: Simplify right side
    425,777.07x = 163,914,660,331.03
  5. Step 5: Solve for x
    x = 163,914,660,331.03/425,777.07
  6. Step 6: Final answer
    x = 384,977.66

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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.