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Finding the Fourth Proportional to 554,877.27, 765,731.07 and 385,209.81

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Solution

The fourth proportional to 554,877.27, 765,731.07 and 385,209.81 is: 531,589.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,877.27 : 765,731.07 = 385,209.81 : x
  2. Step 2: Convert to fraction form
    554,877.27/765,731.07 = 385,209.81/x
  3. Step 3: Cross multiply
    554,877.27x = 765,731.07 × 385,209.81
  4. Step 4: Simplify right side
    554,877.27x = 294,967,119,985.80
  5. Step 5: Solve for x
    x = 294,967,119,985.80/554,877.27
  6. Step 6: Final answer
    x = 531,589.84

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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.