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Finding the Fourth Proportional to 500,324.34, 690,448.02 and 270,881.76

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Solution

The fourth proportional to 500,324.34, 690,448.02 and 270,881.76 is: 373,817.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,324.34 : 690,448.02 = 270,881.76 : x
  2. Step 2: Convert to fraction form
    500,324.34/690,448.02 = 270,881.76/x
  3. Step 3: Cross multiply
    500,324.34x = 690,448.02 × 270,881.76
  4. Step 4: Simplify right side
    500,324.34x = 187,029,774,846.12
  5. Step 5: Solve for x
    x = 187,029,774,846.12/500,324.34
  6. Step 6: Final answer
    x = 373,817.06

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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.