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Finding the Fourth Proportional to 554,992.81, 765,892.52 and 300,344.06

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Solution

The fourth proportional to 554,992.81, 765,892.52 and 300,344.06 is: 414,476.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,992.81 : 765,892.52 = 300,344.06 : x
  2. Step 2: Convert to fraction form
    554,992.81/765,892.52 = 300,344.06/x
  3. Step 3: Cross multiply
    554,992.81x = 765,892.52 × 300,344.06
  4. Step 4: Simplify right side
    554,992.81x = 230,031,268,980.43
  5. Step 5: Solve for x
    x = 230,031,268,980.43/554,992.81
  6. Step 6: Final answer
    x = 414,476.12

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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.