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Finding the Fourth Proportional to 554,588.69, 765,332.40 and 299,939.88

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Solution

The fourth proportional to 554,588.69, 765,332.40 and 299,939.88 is: 413,917.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,588.69 : 765,332.40 = 299,939.88 : x
  2. Step 2: Convert to fraction form
    554,588.69/765,332.40 = 299,939.88/x
  3. Step 3: Cross multiply
    554,588.69x = 765,332.40 × 299,939.88
  4. Step 4: Simplify right side
    554,588.69x = 229,553,708,216.11
  5. Step 5: Solve for x
    x = 229,553,708,216.11/554,588.69
  6. Step 6: Final answer
    x = 413,917.04

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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.