Home / 816,082.20-1,224,123.30-343,301.40

Finding the Fourth Proportional to 816,082.20, 1,224,123.30 and 343,301.40

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Solution

The fourth proportional to 816,082.20, 1,224,123.30 and 343,301.40 is: 514,952.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,082.20 : 1,224,123.30 = 343,301.40 : x
  2. Step 2: Convert to fraction form
    816,082.20/1,224,123.30 = 343,301.40/x
  3. Step 3: Cross multiply
    816,082.20x = 1,224,123.30 × 343,301.40
  4. Step 4: Simplify right side
    816,082.20x = 420,243,242,662.62
  5. Step 5: Solve for x
    x = 420,243,242,662.62/816,082.20
  6. Step 6: Final answer
    x = 514,952.10

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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.