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Finding the Fourth Proportional to 554,588.58, 765,332.22 and 299,939.76

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Solution

The fourth proportional to 554,588.58, 765,332.22 and 299,939.76 is: 413,916.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,588.58 : 765,332.22 = 299,939.76 : x
  2. Step 2: Convert to fraction form
    554,588.58/765,332.22 = 299,939.76/x
  3. Step 3: Cross multiply
    554,588.58x = 765,332.22 × 299,939.76
  4. Step 4: Simplify right side
    554,588.58x = 229,553,562,387.07
  5. Step 5: Solve for x
    x = 229,553,562,387.07/554,588.58
  6. Step 6: Final answer
    x = 413,916.86

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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.