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Finding the Fourth Proportional to 500,283.29, 690,390.07 and 270,840.49

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Solution

The fourth proportional to 500,283.29, 690,390.07 and 270,840.49 is: 373,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,283.29 : 690,390.07 = 270,840.49 : x
  2. Step 2: Convert to fraction form
    500,283.29/690,390.07 = 270,840.49/x
  3. Step 3: Cross multiply
    500,283.29x = 690,390.07 × 270,840.49
  4. Step 4: Simplify right side
    500,283.29x = 186,985,584,849.93
  5. Step 5: Solve for x
    x = 186,985,584,849.93/500,283.29
  6. Step 6: Final answer
    x = 373,759.41

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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.