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Finding the Fourth Proportional to 500,337.21, 690,464.44 and 270,894.47

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Solution

The fourth proportional to 500,337.21, 690,464.44 and 270,894.47 is: 373,833.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,337.21 : 690,464.44 = 270,894.47 : x
  2. Step 2: Convert to fraction form
    500,337.21/690,464.44 = 270,894.47/x
  3. Step 3: Cross multiply
    500,337.21x = 690,464.44 × 270,894.47
  4. Step 4: Simplify right side
    500,337.21x = 187,042,995,075.33
  5. Step 5: Solve for x
    x = 187,042,995,075.33/500,337.21
  6. Step 6: Final answer
    x = 373,833.87

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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.