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Finding the Fourth Proportional to 637,774.25, 880,130.87 and 351,293.64

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Solution

The fourth proportional to 637,774.25, 880,130.87 and 351,293.64 is: 484,786.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,774.25 : 880,130.87 = 351,293.64 : x
  2. Step 2: Convert to fraction form
    637,774.25/880,130.87 = 351,293.64/x
  3. Step 3: Cross multiply
    637,774.25x = 880,130.87 × 351,293.64
  4. Step 4: Simplify right side
    637,774.25x = 309,184,375,242.20
  5. Step 5: Solve for x
    x = 309,184,375,242.20/637,774.25
  6. Step 6: Final answer
    x = 484,786.55

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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.