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Finding the Fourth Proportional to 565,131.76, 779,996.42 and 347,241.20

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Solution

The fourth proportional to 565,131.76, 779,996.42 and 347,241.20 is: 479,263.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,131.76 : 779,996.42 = 347,241.20 : x
  2. Step 2: Convert to fraction form
    565,131.76/779,996.42 = 347,241.20/x
  3. Step 3: Cross multiply
    565,131.76x = 779,996.42 × 347,241.20
  4. Step 4: Simplify right side
    565,131.76x = 270,846,892,876.50
  5. Step 5: Solve for x
    x = 270,846,892,876.50/565,131.76
  6. Step 6: Final answer
    x = 479,263.27

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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.