Home / 727,938.63-1,004,472.88-421,951.79

Finding the Fourth Proportional to 727,938.63, 1,004,472.88 and 421,951.79

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Solution

The fourth proportional to 727,938.63, 1,004,472.88 and 421,951.79 is: 582,245.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,938.63 : 1,004,472.88 = 421,951.79 : x
  2. Step 2: Convert to fraction form
    727,938.63/1,004,472.88 = 421,951.79/x
  3. Step 3: Cross multiply
    727,938.63x = 1,004,472.88 × 421,951.79
  4. Step 4: Simplify right side
    727,938.63x = 423,839,123,645.21
  5. Step 5: Solve for x
    x = 423,839,123,645.21/727,938.63
  6. Step 6: Final answer
    x = 582,245.68

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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.