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Finding the Fourth Proportional to 554,983.96, 765,880.20 and 300,335.16

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Solution

The fourth proportional to 554,983.96, 765,880.20 and 300,335.16 is: 414,463.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,983.96 : 765,880.20 = 300,335.16 : x
  2. Step 2: Convert to fraction form
    554,983.96/765,880.20 = 300,335.16/x
  3. Step 3: Cross multiply
    554,983.96x = 765,880.20 × 300,335.16
  4. Step 4: Simplify right side
    554,983.96x = 230,020,752,407.83
  5. Step 5: Solve for x
    x = 230,020,752,407.83/554,983.96
  6. Step 6: Final answer
    x = 414,463.78

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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.