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Finding the Fourth Proportional to 554,980.23, 765,874.65 and 300,331.35

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Solution

The fourth proportional to 554,980.23, 765,874.65 and 300,331.35 is: 414,458.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,980.23 : 765,874.65 = 300,331.35 : x
  2. Step 2: Convert to fraction form
    554,980.23/765,874.65 = 300,331.35/x
  3. Step 3: Cross multiply
    554,980.23x = 765,874.65 × 300,331.35
  4. Step 4: Simplify right side
    554,980.23x = 230,016,167,565.28
  5. Step 5: Solve for x
    x = 230,016,167,565.28/554,980.23
  6. Step 6: Final answer
    x = 414,458.31

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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.