Home / 1,311,082.43-1,966,871.70-512,313.48

Finding the Fourth Proportional to 1,311,082.43, 1,966,871.70 and 512,313.48

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Solution

The fourth proportional to 1,311,082.43, 1,966,871.70 and 512,313.48 is: 768,567.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,082.43 : 1,966,871.70 = 512,313.48 : x
  2. Step 2: Convert to fraction form
    1,311,082.43/1,966,871.70 = 512,313.48/x
  3. Step 3: Cross multiply
    1,311,082.43x = 1,966,871.70 × 512,313.48
  4. Step 4: Simplify right side
    1,311,082.43x = 1,007,654,885,340.52
  5. Step 5: Solve for x
    x = 1,007,654,885,340.52/1,311,082.43
  6. Step 6: Final answer
    x = 768,567.15

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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.