Home / 500,433.28-690,766.35-304,199.09

Finding the Fourth Proportional to 500,433.28, 690,766.35 and 304,199.09

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Solution

The fourth proportional to 500,433.28, 690,766.35 and 304,199.09 is: 419,897.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,433.28 : 690,766.35 = 304,199.09 : x
  2. Step 2: Convert to fraction form
    500,433.28/690,766.35 = 304,199.09/x
  3. Step 3: Cross multiply
    500,433.28x = 690,766.35 × 304,199.09
  4. Step 4: Simplify right side
    500,433.28x = 210,130,491,618.79
  5. Step 5: Solve for x
    x = 210,130,491,618.79/500,433.28
  6. Step 6: Final answer
    x = 419,897.12

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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.