Home / 686,805.20-1,030,423.80-331,830.80

Finding the Fourth Proportional to 686,805.20, 1,030,423.80 and 331,830.80

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Solution

The fourth proportional to 686,805.20, 1,030,423.80 and 331,830.80 is: 497,850.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,805.20 : 1,030,423.80 = 331,830.80 : x
  2. Step 2: Convert to fraction form
    686,805.20/1,030,423.80 = 331,830.80/x
  3. Step 3: Cross multiply
    686,805.20x = 1,030,423.80 × 331,830.80
  4. Step 4: Simplify right side
    686,805.20x = 341,926,353,893.04
  5. Step 5: Solve for x
    x = 341,926,353,893.04/686,805.20
  6. Step 6: Final answer
    x = 497,850.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.