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Finding the Fourth Proportional to 483,382.80, 666,455.13 and 345,727.53

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Solution

The fourth proportional to 483,382.80, 666,455.13 and 345,727.53 is: 476,665.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,382.80 : 666,455.13 = 345,727.53 : x
  2. Step 2: Convert to fraction form
    483,382.80/666,455.13 = 345,727.53/x
  3. Step 3: Cross multiply
    483,382.80x = 666,455.13 × 345,727.53
  4. Step 4: Simplify right side
    483,382.80x = 230,411,885,950.73
  5. Step 5: Solve for x
    x = 230,411,885,950.73/483,382.80
  6. Step 6: Final answer
    x = 476,665.46

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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.