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Finding the Fourth Proportional to 492,963.47, 680,289.59 and 266,608.97

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Solution

The fourth proportional to 492,963.47, 680,289.59 and 266,608.97 is: 367,920.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,963.47 : 680,289.59 = 266,608.97 : x
  2. Step 2: Convert to fraction form
    492,963.47/680,289.59 = 266,608.97/x
  3. Step 3: Cross multiply
    492,963.47x = 680,289.59 × 266,608.97
  4. Step 4: Simplify right side
    492,963.47x = 181,371,305,208.11
  5. Step 5: Solve for x
    x = 181,371,305,208.11/492,963.47
  6. Step 6: Final answer
    x = 367,920.38

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1.5x scale

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.