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Finding the Fourth Proportional to 550,377.34, 759,527.10 and 305,366.71

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Solution

The fourth proportional to 550,377.34, 759,527.10 and 305,366.71 is: 421,409.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,377.34 : 759,527.10 = 305,366.71 : x
  2. Step 2: Convert to fraction form
    550,377.34/759,527.10 = 305,366.71/x
  3. Step 3: Cross multiply
    550,377.34x = 759,527.10 × 305,366.71
  4. Step 4: Simplify right side
    550,377.34x = 231,934,292,066.98
  5. Step 5: Solve for x
    x = 231,934,292,066.98/550,377.34
  6. Step 6: Final answer
    x = 421,409.59

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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.