Home / 786,082.34-1,179,372.69-280,632.11

Finding the Fourth Proportional to 786,082.34, 1,179,372.69 and 280,632.11

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Solution

The fourth proportional to 786,082.34, 1,179,372.69 and 280,632.11 is: 421,037.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,082.34 : 1,179,372.69 = 280,632.11 : x
  2. Step 2: Convert to fraction form
    786,082.34/1,179,372.69 = 280,632.11/x
  3. Step 3: Cross multiply
    786,082.34x = 1,179,372.69 × 280,632.11
  4. Step 4: Simplify right side
    786,082.34x = 330,969,847,208.18
  5. Step 5: Solve for x
    x = 330,969,847,208.18/786,082.34
  6. Step 6: Final answer
    x = 421,037.13

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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.