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Finding the Fourth Proportional to 547,231.57, 815,343.32 and 516,673.71

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Solution

The fourth proportional to 547,231.57, 815,343.32 and 516,673.71 is: 769,813.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,231.57 : 815,343.32 = 516,673.71 : x
  2. Step 2: Convert to fraction form
    547,231.57/815,343.32 = 516,673.71/x
  3. Step 3: Cross multiply
    547,231.57x = 815,343.32 × 516,673.71
  4. Step 4: Simplify right side
    547,231.57x = 421,266,459,359.80
  5. Step 5: Solve for x
    x = 421,266,459,359.80/547,231.57
  6. Step 6: Final answer
    x = 769,813.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.