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Finding the Fourth Proportional to 543,453.75, 749,989.60 and 301,736.36

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Solution

The fourth proportional to 543,453.75, 749,989.60 and 301,736.36 is: 416,409.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,453.75 : 749,989.60 = 301,736.36 : x
  2. Step 2: Convert to fraction form
    543,453.75/749,989.60 = 301,736.36/x
  3. Step 3: Cross multiply
    543,453.75x = 749,989.60 × 301,736.36
  4. Step 4: Simplify right side
    543,453.75x = 226,299,131,941.86
  5. Step 5: Solve for x
    x = 226,299,131,941.86/543,453.75
  6. Step 6: Final answer
    x = 416,409.18

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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.