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Finding the Fourth Proportional to 403,029.10, 605,855.85 and 285,514.30

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Solution

The fourth proportional to 403,029.10, 605,855.85 and 285,514.30 is: 429,201.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,029.10 : 605,855.85 = 285,514.30 : x
  2. Step 2: Convert to fraction form
    403,029.10/605,855.85 = 285,514.30/x
  3. Step 3: Cross multiply
    403,029.10x = 605,855.85 × 285,514.30
  4. Step 4: Simplify right side
    403,029.10x = 172,980,508,913.66
  5. Step 5: Solve for x
    x = 172,980,508,913.66/403,029.10
  6. Step 6: Final answer
    x = 429,201.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.