Home / 492,977.28-680,309.10-266,622.78

Finding the Fourth Proportional to 492,977.28, 680,309.10 and 266,622.78

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Solution

The fourth proportional to 492,977.28, 680,309.10 and 266,622.78 is: 367,939.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,977.28 : 680,309.10 = 266,622.78 : x
  2. Step 2: Convert to fraction form
    492,977.28/680,309.10 = 266,622.78/x
  3. Step 3: Cross multiply
    492,977.28x = 680,309.10 × 266,622.78
  4. Step 4: Simplify right side
    492,977.28x = 181,385,903,501.30
  5. Step 5: Solve for x
    x = 181,385,903,501.30/492,977.28
  6. Step 6: Final answer
    x = 367,939.68

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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.