Home / 500,233.05-690,423.71-339,139.89

Finding the Fourth Proportional to 500,233.05, 690,423.71 and 339,139.89

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Solution

The fourth proportional to 500,233.05, 690,423.71 and 339,139.89 is: 468,082.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,233.05 : 690,423.71 = 339,139.89 : x
  2. Step 2: Convert to fraction form
    500,233.05/690,423.71 = 339,139.89/x
  3. Step 3: Cross multiply
    500,233.05x = 690,423.71 × 339,139.89
  4. Step 4: Simplify right side
    500,233.05x = 234,150,219,367.09
  5. Step 5: Solve for x
    x = 234,150,219,367.09/500,233.05
  6. Step 6: Final answer
    x = 468,082.27

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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.