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Finding the Fourth Proportional to 554,941.91, 765,821.86 and 300,293.10

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Solution

The fourth proportional to 554,941.91, 765,821.86 and 300,293.10 is: 414,405.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,941.91 : 765,821.86 = 300,293.10 : x
  2. Step 2: Convert to fraction form
    554,941.91/765,821.86 = 300,293.10/x
  3. Step 3: Cross multiply
    554,941.91x = 765,821.86 × 300,293.10
  4. Step 4: Simplify right side
    554,941.91x = 229,971,019,636.43
  5. Step 5: Solve for x
    x = 229,971,019,636.43/554,941.91
  6. Step 6: Final answer
    x = 414,405.57

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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.