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Finding the Fourth Proportional to 500,028.46, 690,034.01 and 270,580.70

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Solution

The fourth proportional to 500,028.46, 690,034.01 and 270,580.70 is: 373,398.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,028.46 : 690,034.01 = 270,580.70 : x
  2. Step 2: Convert to fraction form
    500,028.46/690,034.01 = 270,580.70/x
  3. Step 3: Cross multiply
    500,028.46x = 690,034.01 × 270,580.70
  4. Step 4: Simplify right side
    500,028.46x = 186,709,885,821.79
  5. Step 5: Solve for x
    x = 186,709,885,821.79/500,028.46
  6. Step 6: Final answer
    x = 373,398.52

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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.