Home / 1,317,627.66-1,818,250.71-728,891.97

Finding the Fourth Proportional to 1,317,627.66, 1,818,250.71 and 728,891.97

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Solution

The fourth proportional to 1,317,627.66, 1,818,250.71 and 728,891.97 is: 1,005,829.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,627.66 : 1,818,250.71 = 728,891.97 : x
  2. Step 2: Convert to fraction form
    1,317,627.66/1,818,250.71 = 728,891.97/x
  3. Step 3: Cross multiply
    1,317,627.66x = 1,818,250.71 × 728,891.97
  4. Step 4: Simplify right side
    1,317,627.66x = 1,325,308,342,641.67
  5. Step 5: Solve for x
    x = 1,325,308,342,641.67/1,317,627.66
  6. Step 6: Final answer
    x = 1,005,829.17

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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.