Home / 492,990.12-680,326.38-266,635.62

Finding the Fourth Proportional to 492,990.12, 680,326.38 and 266,635.62

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Solution

The fourth proportional to 492,990.12, 680,326.38 and 266,635.62 is: 367,957.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,990.12 : 680,326.38 = 266,635.62 : x
  2. Step 2: Convert to fraction form
    492,990.12/680,326.38 = 266,635.62/x
  3. Step 3: Cross multiply
    492,990.12x = 680,326.38 × 266,635.62
  4. Step 4: Simplify right side
    492,990.12x = 181,399,246,133.66
  5. Step 5: Solve for x
    x = 181,399,246,133.66/492,990.12
  6. Step 6: Final answer
    x = 367,957.16

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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.