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Finding the Fourth Proportional to 500,499.04, 690,697.68 and 274,129.96

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Solution

The fourth proportional to 500,499.04, 690,697.68 and 274,129.96 is: 378,304.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,499.04 : 690,697.68 = 274,129.96 : x
  2. Step 2: Convert to fraction form
    500,499.04/690,697.68 = 274,129.96/x
  3. Step 3: Cross multiply
    500,499.04x = 690,697.68 × 274,129.96
  4. Step 4: Simplify right side
    500,499.04x = 189,340,927,390.49
  5. Step 5: Solve for x
    x = 189,340,927,390.49/500,499.04
  6. Step 6: Final answer
    x = 378,304.28

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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.