Home / 1,311,992.69-1,810,493.96-731,184.90

Finding the Fourth Proportional to 1,311,992.69, 1,810,493.96 and 731,184.90

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Solution

The fourth proportional to 1,311,992.69, 1,810,493.96 and 731,184.90 is: 1,009,003.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,992.69 : 1,810,493.96 = 731,184.90 : x
  2. Step 2: Convert to fraction form
    1,311,992.69/1,810,493.96 = 731,184.90/x
  3. Step 3: Cross multiply
    1,311,992.69x = 1,810,493.96 × 731,184.90
  4. Step 4: Simplify right side
    1,311,992.69x = 1,323,805,841,437.28
  5. Step 5: Solve for x
    x = 1,323,805,841,437.28/1,311,992.69
  6. Step 6: Final answer
    x = 1,009,003.98

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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.