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Finding the Fourth Proportional to 550,429.16, 759,598.47 and 305,418.33

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Solution

The fourth proportional to 550,429.16, 759,598.47 and 305,418.33 is: 421,480.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,429.16 : 759,598.47 = 305,418.33 : x
  2. Step 2: Convert to fraction form
    550,429.16/759,598.47 = 305,418.33/x
  3. Step 3: Cross multiply
    550,429.16x = 759,598.47 × 305,418.33
  4. Step 4: Simplify right side
    550,429.16x = 231,995,296,177.96
  5. Step 5: Solve for x
    x = 231,995,296,177.96/550,429.16
  6. Step 6: Final answer
    x = 421,480.76

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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.