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Finding the Fourth Proportional to 554,972.90, 765,862.58 and 300,324.08

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Solution

The fourth proportional to 554,972.90, 765,862.58 and 300,324.08 is: 414,447.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,972.90 : 765,862.58 = 300,324.08 : x
  2. Step 2: Convert to fraction form
    554,972.90/765,862.58 = 300,324.08/x
  3. Step 3: Cross multiply
    554,972.90x = 765,862.58 × 300,324.08
  4. Step 4: Simplify right side
    554,972.90x = 230,006,975,157.96
  5. Step 5: Solve for x
    x = 230,006,975,157.96/554,972.90
  6. Step 6: Final answer
    x = 414,447.22

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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.