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Finding the Fourth Proportional to 554,967.50, 765,860.64 and 300,324.18

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Solution

The fourth proportional to 554,967.50, 765,860.64 and 300,324.18 is: 414,450.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,967.50 : 765,860.64 = 300,324.18 : x
  2. Step 2: Convert to fraction form
    554,967.50/765,860.64 = 300,324.18/x
  3. Step 3: Cross multiply
    554,967.50x = 765,860.64 × 300,324.18
  4. Step 4: Simplify right side
    554,967.50x = 230,006,468,702.28
  5. Step 5: Solve for x
    x = 230,006,468,702.28/554,967.50
  6. Step 6: Final answer
    x = 414,450.34

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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.