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Finding the Fourth Proportional to 554,456.52, 765,150.54 and 299,807.64

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Solution

The fourth proportional to 554,456.52, 765,150.54 and 299,807.64 is: 413,734.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,456.52 : 765,150.54 = 299,807.64 : x
  2. Step 2: Convert to fraction form
    554,456.52/765,150.54 = 299,807.64/x
  3. Step 3: Cross multiply
    554,456.52x = 765,150.54 × 299,807.64
  4. Step 4: Simplify right side
    554,456.52x = 229,397,977,642.13
  5. Step 5: Solve for x
    x = 229,397,977,642.13/554,456.52
  6. Step 6: Final answer
    x = 413,734.84

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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.