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Finding the Fourth Proportional to 554,587.85, 765,331.23 and 299,939.03

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Solution

The fourth proportional to 554,587.85, 765,331.23 and 299,939.03 is: 413,915.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,587.85 : 765,331.23 = 299,939.03 : x
  2. Step 2: Convert to fraction form
    554,587.85/765,331.23 = 299,939.03/x
  3. Step 3: Cross multiply
    554,587.85x = 765,331.23 × 299,939.03
  4. Step 4: Simplify right side
    554,587.85x = 229,552,709,540.85
  5. Step 5: Solve for x
    x = 229,552,709,540.85/554,587.85
  6. Step 6: Final answer
    x = 413,915.87

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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.