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Finding the Fourth Proportional to 554,742, 765,543.18 and 300,092.64

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Solution

The fourth proportional to 554,742, 765,543.18 and 300,092.64 is: 414,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,742 : 765,543.18 = 300,092.64 : x
  2. Step 2: Convert to fraction form
    554,742/765,543.18 = 300,092.64/x
  3. Step 3: Cross multiply
    554,742x = 765,543.18 × 300,092.64
  4. Step 4: Simplify right side
    554,742x = 229,733,873,920.20
  5. Step 5: Solve for x
    x = 229,733,873,920.20/554,742
  6. Step 6: Final answer
    x = 414,127.42

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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.