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Finding the Fourth Proportional to 637,805.21, 880,171.24 and 351,325.30

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Solution

The fourth proportional to 637,805.21, 880,171.24 and 351,325.30 is: 484,828.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,805.21 : 880,171.24 = 351,325.30 : x
  2. Step 2: Convert to fraction form
    637,805.21/880,171.24 = 351,325.30/x
  3. Step 3: Cross multiply
    637,805.21x = 880,171.24 × 351,325.30
  4. Step 4: Simplify right side
    637,805.21x = 309,226,425,822.69
  5. Step 5: Solve for x
    x = 309,226,425,822.69/637,805.21
  6. Step 6: Final answer
    x = 484,828.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.