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Finding the Fourth Proportional to 510,540.30, 704,533.95 and 319,658.94

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Solution

The fourth proportional to 510,540.30, 704,533.95 and 319,658.94 is: 441,122.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,540.30 : 704,533.95 = 319,658.94 : x
  2. Step 2: Convert to fraction form
    510,540.30/704,533.95 = 319,658.94/x
  3. Step 3: Cross multiply
    510,540.30x = 704,533.95 × 319,658.94
  4. Step 4: Simplify right side
    510,540.30x = 225,210,575,651.01
  5. Step 5: Solve for x
    x = 225,210,575,651.01/510,540.30
  6. Step 6: Final answer
    x = 441,122.03

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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.