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Finding the Fourth Proportional to 554,994.06, 765,894.20 and 300,345.27

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Solution

The fourth proportional to 554,994.06, 765,894.20 and 300,345.27 is: 414,477.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,994.06 : 765,894.20 = 300,345.27 : x
  2. Step 2: Convert to fraction form
    554,994.06/765,894.20 = 300,345.27/x
  3. Step 3: Cross multiply
    554,994.06x = 765,894.20 × 300,345.27
  4. Step 4: Simplify right side
    554,994.06x = 230,032,700,290.43
  5. Step 5: Solve for x
    x = 230,032,700,290.43/554,994.06
  6. Step 6: Final answer
    x = 414,477.77

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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.