Home / 492,621.14-679,816.80-266,266.64

Finding the Fourth Proportional to 492,621.14, 679,816.80 and 266,266.64

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Solution

The fourth proportional to 492,621.14, 679,816.80 and 266,266.64 is: 367,447.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,621.14 : 679,816.80 = 266,266.64 : x
  2. Step 2: Convert to fraction form
    492,621.14/679,816.80 = 266,266.64/x
  3. Step 3: Cross multiply
    492,621.14x = 679,816.80 × 266,266.64
  4. Step 4: Simplify right side
    492,621.14x = 181,012,536,851.09
  5. Step 5: Solve for x
    x = 181,012,536,851.09/492,621.14
  6. Step 6: Final answer
    x = 367,447.76

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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.