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Finding the Fourth Proportional to 425,716.41, 637,852 and 256,881.97

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Solution

The fourth proportional to 425,716.41, 637,852 and 256,881.97 is: 384,886.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,716.41 : 637,852 = 256,881.97 : x
  2. Step 2: Convert to fraction form
    425,716.41/637,852 = 256,881.97/x
  3. Step 3: Cross multiply
    425,716.41x = 637,852 × 256,881.97
  4. Step 4: Simplify right side
    425,716.41x = 163,852,678,328.44
  5. Step 5: Solve for x
    x = 163,852,678,328.44/425,716.41
  6. Step 6: Final answer
    x = 384,886.92

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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.