Home / 492,986.16-680,320.95-266,631.66

Finding the Fourth Proportional to 492,986.16, 680,320.95 and 266,631.66

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Solution

The fourth proportional to 492,986.16, 680,320.95 and 266,631.66 is: 367,951.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,986.16 : 680,320.95 = 266,631.66 : x
  2. Step 2: Convert to fraction form
    492,986.16/680,320.95 = 266,631.66/x
  3. Step 3: Cross multiply
    492,986.16x = 680,320.95 × 266,631.66
  4. Step 4: Simplify right side
    492,986.16x = 181,395,100,680.21
  5. Step 5: Solve for x
    x = 181,395,100,680.21/492,986.16
  6. Step 6: Final answer
    x = 367,951.71

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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.