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Finding the Fourth Proportional to 554,955.29, 765,840.32 and 300,306.48

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Solution

The fourth proportional to 554,955.29, 765,840.32 and 300,306.48 is: 414,424.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,955.29 : 765,840.32 = 300,306.48 : x
  2. Step 2: Convert to fraction form
    554,955.29/765,840.32 = 300,306.48/x
  3. Step 3: Cross multiply
    554,955.29x = 765,840.32 × 300,306.48
  4. Step 4: Simplify right side
    554,955.29x = 229,986,810,741.27
  5. Step 5: Solve for x
    x = 229,986,810,741.27/554,955.29
  6. Step 6: Final answer
    x = 414,424.04

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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.