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Finding the Fourth Proportional to 554,978.24, 765,869.94 and 300,329.43

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Solution

The fourth proportional to 554,978.24, 765,869.94 and 300,329.43 is: 414,454.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,978.24 : 765,869.94 = 300,329.43 : x
  2. Step 2: Convert to fraction form
    554,978.24/765,869.94 = 300,329.43/x
  3. Step 3: Cross multiply
    554,978.24x = 765,869.94 × 300,329.43
  4. Step 4: Simplify right side
    554,978.24x = 230,013,282,534.33
  5. Step 5: Solve for x
    x = 230,013,282,534.33/554,978.24
  6. Step 6: Final answer
    x = 414,454.60

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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.