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Finding the Fourth Proportional to 554,504.69, 765,216.50 and 299,855.88

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Solution

The fourth proportional to 554,504.69, 765,216.50 and 299,855.88 is: 413,801.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,504.69 : 765,216.50 = 299,855.88 : x
  2. Step 2: Convert to fraction form
    554,504.69/765,216.50 = 299,855.88/x
  3. Step 3: Cross multiply
    554,504.69x = 765,216.50 × 299,855.88
  4. Step 4: Simplify right side
    554,504.69x = 229,454,665,498.74
  5. Step 5: Solve for x
    x = 229,454,665,498.74/554,504.69
  6. Step 6: Final answer
    x = 413,801.12

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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.