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Finding the Fourth Proportional to 550,377.36, 759,476.52 and 305,370

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Solution

The fourth proportional to 550,377.36, 759,476.52 and 305,370 is: 421,386.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,377.36 : 759,476.52 = 305,370 : x
  2. Step 2: Convert to fraction form
    550,377.36/759,476.52 = 305,370/x
  3. Step 3: Cross multiply
    550,377.36x = 759,476.52 × 305,370
  4. Step 4: Simplify right side
    550,377.36x = 231,921,344,912.40
  5. Step 5: Solve for x
    x = 231,921,344,912.40/550,377.36
  6. Step 6: Final answer
    x = 421,386.06

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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.