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Finding the Fourth Proportional to 569,171.62, 785,459.26 and 311,053.70

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Solution

The fourth proportional to 569,171.62, 785,459.26 and 311,053.70 is: 429,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,171.62 : 785,459.26 = 311,053.70 : x
  2. Step 2: Convert to fraction form
    569,171.62/785,459.26 = 311,053.70/x
  3. Step 3: Cross multiply
    569,171.62x = 785,459.26 × 311,053.70
  4. Step 4: Simplify right side
    569,171.62x = 244,320,004,317.33
  5. Step 5: Solve for x
    x = 244,320,004,317.33/569,171.62
  6. Step 6: Final answer
    x = 429,255.43

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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.