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Finding the Fourth Proportional to 554,578.36, 765,318.64 and 299,929.55

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Solution

The fourth proportional to 554,578.36, 765,318.64 and 299,929.55 is: 413,903.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,578.36 : 765,318.64 = 299,929.55 : x
  2. Step 2: Convert to fraction form
    554,578.36/765,318.64 = 299,929.55/x
  3. Step 3: Cross multiply
    554,578.36x = 765,318.64 × 299,929.55
  4. Step 4: Simplify right side
    554,578.36x = 229,541,670,725.40
  5. Step 5: Solve for x
    x = 229,541,670,725.40/554,578.36
  6. Step 6: Final answer
    x = 413,903.04

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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.