Home / 1,312,015.26-1,810,636.20-731,238.66

Finding the Fourth Proportional to 1,312,015.26, 1,810,636.20 and 731,238.66

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Solution

The fourth proportional to 1,312,015.26, 1,810,636.20 and 731,238.66 is: 1,009,140.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,015.26 : 1,810,636.20 = 731,238.66 : x
  2. Step 2: Convert to fraction form
    1,312,015.26/1,810,636.20 = 731,238.66/x
  3. Step 3: Cross multiply
    1,312,015.26x = 1,810,636.20 × 731,238.66
  4. Step 4: Simplify right side
    1,312,015.26x = 1,324,007,188,635.49
  5. Step 5: Solve for x
    x = 1,324,007,188,635.49/1,312,015.26
  6. Step 6: Final answer
    x = 1,009,140.08

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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.