Home / 644,837.88-965,781.80-308,115.22

Finding the Fourth Proportional to 644,837.88, 965,781.80 and 308,115.22

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Solution

The fourth proportional to 644,837.88, 965,781.80 and 308,115.22 is: 461,468.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,837.88 : 965,781.80 = 308,115.22 : x
  2. Step 2: Convert to fraction form
    644,837.88/965,781.80 = 308,115.22/x
  3. Step 3: Cross multiply
    644,837.88x = 965,781.80 × 308,115.22
  4. Step 4: Simplify right side
    644,837.88x = 297,572,071,779.00
  5. Step 5: Solve for x
    x = 297,572,071,779.00/644,837.88
  6. Step 6: Final answer
    x = 461,468.04

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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.