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Finding the Fourth Proportional to 485,786.66, 729,311.43 and 373,545.69

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Solution

The fourth proportional to 485,786.66, 729,311.43 and 373,545.69 is: 560,804.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,786.66 : 729,311.43 = 373,545.69 : x
  2. Step 2: Convert to fraction form
    485,786.66/729,311.43 = 373,545.69/x
  3. Step 3: Cross multiply
    485,786.66x = 729,311.43 × 373,545.69
  4. Step 4: Simplify right side
    485,786.66x = 272,431,143,057.22
  5. Step 5: Solve for x
    x = 272,431,143,057.22/485,786.66
  6. Step 6: Final answer
    x = 560,804.09

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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.