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Finding the Fourth Proportional to 492,988.09, 680,323.62 and 266,633.59

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Solution

The fourth proportional to 492,988.09, 680,323.62 and 266,633.59 is: 367,954.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,988.09 : 680,323.62 = 266,633.59 : x
  2. Step 2: Convert to fraction form
    492,988.09/680,323.62 = 266,633.59/x
  3. Step 3: Cross multiply
    492,988.09x = 680,323.62 × 266,633.59
  4. Step 4: Simplify right side
    492,988.09x = 181,397,129,162.40
  5. Step 5: Solve for x
    x = 181,397,129,162.40/492,988.09
  6. Step 6: Final answer
    x = 367,954.38

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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.