Home / 748,354.98-1,121,832.63-274,913.22

Finding the Fourth Proportional to 748,354.98, 1,121,832.63 and 274,913.22

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Solution

The fourth proportional to 748,354.98, 1,121,832.63 and 274,913.22 is: 412,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,354.98 : 1,121,832.63 = 274,913.22 : x
  2. Step 2: Convert to fraction form
    748,354.98/1,121,832.63 = 274,913.22/x
  3. Step 3: Cross multiply
    748,354.98x = 1,121,832.63 × 274,913.22
  4. Step 4: Simplify right side
    748,354.98x = 308,406,620,614.37
  5. Step 5: Solve for x
    x = 308,406,620,614.37/748,354.98
  6. Step 6: Final answer
    x = 412,112.74

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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.